diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 05feb9d3bf0..237e6aa0c72 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -12727,6 +12727,12 @@
      {}
     ]
    ],
+   "html/dom/elements/global-attributes/title-manual.html": [
+    [
+     "/html/dom/elements/global-attributes/title-manual.html",
+     {}
+    ]
+   ],
    "html/editing/activation/click-manual.html": [
     [
      "/html/editing/activation/click-manual.html",
@@ -107822,7 +107828,7 @@
      "/css/css-flexbox/anonymous-flex-item-004.html",
      [
       [
-       "/css/css-flexbox/anonymous-flex-item-ref.html",
+       "/css/css-flexbox/anonymous-flex-item-split-ref.html",
        "=="
       ]
      ],
@@ -107834,7 +107840,7 @@
      "/css/css-flexbox/anonymous-flex-item-005.html",
      [
       [
-       "/css/css-flexbox/anonymous-flex-item-ref.html",
+       "/css/css-flexbox/anonymous-flex-item-split-ref.html",
        "=="
       ]
      ],
@@ -107846,7 +107852,7 @@
      "/css/css-flexbox/anonymous-flex-item-006.html",
      [
       [
-       "/css/css-flexbox/anonymous-flex-item-ref.html",
+       "/css/css-flexbox/anonymous-flex-item-split-ref.html",
        "=="
       ]
      ],
@@ -235099,6 +235105,11 @@
      {}
     ]
    ],
+   "css/css-flexbox/anonymous-flex-item-split-ref.html": [
+    [
+     {}
+    ]
+   ],
    "css/css-flexbox/auto-margins-001-ref.html": [
     [
      {}
@@ -268504,6 +268515,16 @@
      {}
     ]
    ],
+   "feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html.headers": [
+    [
+     {}
+    ]
+   ],
+   "feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html.headers": [
+    [
+     {}
+    ]
+   ],
    "feature-policy/resources/autoplay.js": [
     [
      {}
@@ -268524,6 +268545,11 @@
      {}
     ]
    ],
+   "feature-policy/resources/feature-policy-picture-in-picture.html": [
+    [
+     {}
+    ]
+   ],
    "feature-policy/resources/feature-policy-usb.html": [
     [
      {}
@@ -268544,6 +268570,11 @@
      {}
     ]
    ],
+   "feature-policy/resources/picture-in-picture.js": [
+    [
+     {}
+    ]
+   ],
    "feature-policy/resources/redirect-on-load.html": [
     [
      {}
@@ -318907,6 +318938,46 @@
      {}
     ]
    ],
+   "feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html": [
+    [
+     "/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html": [
+    [
+     "/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html": [
+    [
+     "/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "feature-policy/picture-in-picture-default-feature-policy.https.sub.html": [
+    [
+     "/feature-policy/picture-in-picture-default-feature-policy.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html": [
+    [
+     "/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "fetch/api/abort/cache.https.html": [
     [
      "/fetch/api/abort/cache.https.html",
@@ -361825,9 +361896,9 @@
      {}
     ]
    ],
-   "webvr/idlharness.html": [
+   "webvr/idlharness.https.html": [
     [
-     "/webvr/idlharness.html",
+     "/webvr/idlharness.https.html",
      {}
     ]
    ],
@@ -481347,21 +481418,25 @@
    "reftest"
   ],
   "css/css-flexbox/anonymous-flex-item-004.html": [
-   "d27625d34f2efa147415ef4e78f01cdc154ea579",
+   "bb323a9ae5e802fb892d8c462bbd733837a6ddf0",
    "reftest"
   ],
   "css/css-flexbox/anonymous-flex-item-005.html": [
-   "c967afaa14aff2a6d2a32346c12b3c1b4fbdc7c6",
+   "a6e054f825e7378729188f39a57b801113f7130f",
    "reftest"
   ],
   "css/css-flexbox/anonymous-flex-item-006.html": [
-   "d3d0c005dc2b121906f40e9a093d0feec9182355",
+   "75b57bad81da6c233d359e7a78a0e7c94f6b8a9b",
    "reftest"
   ],
   "css/css-flexbox/anonymous-flex-item-ref.html": [
    "e8b1580d36b15778ca903fefa1ccccaef31b099f",
    "support"
   ],
+  "css/css-flexbox/anonymous-flex-item-split-ref.html": [
+   "b248e78a0255b923c4ed4aa269e65f53b6386bf4",
+   "support"
+  ],
   "css/css-flexbox/auto-margins-001-ref.html": [
    "dfc6fe046906c564110225d01572aa6aa1e40858",
    "support"
@@ -484275,7 +484350,7 @@
    "support"
   ],
   "css/css-fonts/alternates-order.html": [
-   "b4992b381f6a8f83ee043f379e614b43c7ead393",
+   "9232ad7768f5bea41d87469113b210b3c663750e",
    "reftest"
   ],
   "css/css-fonts/first-available-font-001-ref.html": [
@@ -484755,7 +484830,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-01.html": [
-   "445ff998bf052c1f04ab8e33002eedf391cb835d",
+   "e3518e03e8e02e2b4db6920a1b92c5dfe238e420",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-02-ref.html": [
@@ -484763,7 +484838,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-02.html": [
-   "e9d74f02812d6b947fd88ffe91838cdae65df4cb",
+   "ff563808733e638fed251bee552a91b4e0072ec6",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-03-ref.html": [
@@ -484771,7 +484846,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-03.html": [
-   "e4ab952f4a9c5f5421b3237f589c08c8f6c04509",
+   "6e96d53e6baa87241e24d3ff730e39f84d0b5117",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-04-ref.html": [
@@ -484779,7 +484854,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-04.html": [
-   "09306fe9ff6d99d7226811c84702fe451b680e0a",
+   "2317a9bcd1572a7376a51eb1deb39c5e47abfb7f",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-05-ref.html": [
@@ -484787,7 +484862,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-05.html": [
-   "a40b09abdd8a3f31100184f9f13b1c65d93d6abc",
+   "79ef4afc32894f8ef4baa976fa75a83cb925d59c",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-06-ref.html": [
@@ -484795,7 +484870,7 @@
    "support"
   ],
   "css/css-fonts/font-variant-alternates-06.html": [
-   "eb87b2a0af758871cc856a9ec2aa4e976716c293",
+   "e89fab4f312af29a434f941ce1327abfcbeba9d7",
    "reftest"
   ],
   "css/css-fonts/font-variant-alternates-07-ref.html": [
@@ -540874,6 +540949,34 @@
    "09f612159dc367bad5febc8e0a724f0a284517d5",
    "support"
   ],
+  "feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html": [
+   "2cd4247efee0a52e974b9a443c45411545c67578",
+   "testharness"
+  ],
+  "feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html": [
+   "9fe872a67a3936f1dd743c8bc13b8c2f464c8002",
+   "testharness"
+  ],
+  "feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html": [
+   "78f99383d792f820d3655a5b784a8458e9e9f7e6",
+   "testharness"
+  ],
+  "feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html.headers": [
+   "264cecc1cd7264ee488524449df2d95201d6bc56",
+   "support"
+  ],
+  "feature-policy/picture-in-picture-default-feature-policy.https.sub.html": [
+   "3d493f9c8c024c4f97a5f0ae3d12977f8719bcc6",
+   "testharness"
+  ],
+  "feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html": [
+   "fb7ea1dbfb4bd71aa007bb456ce5528c3f71fb0c",
+   "testharness"
+  ],
+  "feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html.headers": [
+   "6b83276039e265cf35762e045d0fbafdf647daf5",
+   "support"
+  ],
   "feature-policy/resources/autoplay.js": [
    "6b1dd45e19dff4759b4d165cdfd59970e4212058",
    "support"
@@ -540890,6 +540993,10 @@
    "958b32f77b02f2ff80cf174aadac62237d79056b",
    "support"
   ],
+  "feature-policy/resources/feature-policy-picture-in-picture.html": [
+   "057973ef7f86c3628948c54d5697fb565e6d0a96",
+   "support"
+  ],
   "feature-policy/resources/feature-policy-usb.html": [
    "96ae900bcde19a4ffcab30f1d01b393e07936e99",
    "support"
@@ -540906,6 +541013,10 @@
    "d2d5194fab261d7aa0b8d1b31077a42316f5f351",
    "support"
   ],
+  "feature-policy/resources/picture-in-picture.js": [
+   "20355b27be4404af59fc2742b43c6600147eccd3",
+   "support"
+  ],
   "feature-policy/resources/redirect-on-load.html": [
    "5d9d75fc156f6d5a934a1aca7aa2b4a8e238dd4f",
    "support"
@@ -546974,6 +547085,10 @@
    "bec8edb2763e83b4141e92f95b02521cd16fbc02",
    "testharness"
   ],
+  "html/dom/elements/global-attributes/title-manual.html": [
+   "62eca26e21572801404647be9e309d9ae3cf689f",
+   "manual"
+  ],
   "html/dom/elements/requirements-relating-to-bidirectional-algorithm-formatting-characters/.gitkeep": [
    "da39a3ee5e6b4b0d3255bfef95601890afd80709",
    "support"
@@ -593670,7 +593785,7 @@
    "adb04954bffbb33f29864668db95f5c5367d6a05",
    "support"
   ],
-  "webvr/idlharness.html": [
+  "webvr/idlharness.https.html": [
    "3505e27e1b2668010bf61f05f6b8a759cf42cece",
    "testharness"
   ],
diff --git a/tests/wpt/metadata/css/CSS2/visudet/line-height-204.html.ini b/tests/wpt/metadata/css/CSS2/visudet/line-height-204.html.ini
deleted file mode 100644
index 3d28990c283..00000000000
--- a/tests/wpt/metadata/css/CSS2/visudet/line-height-204.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[line-height-204.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/box-shadow-syntax-001.xht.ini b/tests/wpt/metadata/css/css-backgrounds/box-shadow-syntax-001.xht.ini
index 47a52ac2420..bb9b1b76687 100644
--- a/tests/wpt/metadata/css/css-backgrounds/box-shadow-syntax-001.xht.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/box-shadow-syntax-001.xht.ini
@@ -1,3 +1,3 @@
 [box-shadow-syntax-001.xht]
   type: reftest
-  expected: TIMEOUT
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-004.html.ini b/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-004.html.ini
new file mode 100644
index 00000000000..7df62ee8875
--- /dev/null
+++ b/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-004.html.ini
@@ -0,0 +1,2 @@
+[anonymous-flex-item-004.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-005.html.ini b/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-005.html.ini
deleted file mode 100644
index f5db1aa1610..00000000000
--- a/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-005.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[anonymous-flex-item-005.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-006.html.ini b/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-006.html.ini
deleted file mode 100644
index 5865ea15bc8..00000000000
--- a/tests/wpt/metadata/css/css-flexbox/anonymous-flex-item-006.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[anonymous-flex-item-006.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-017.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-017.html.ini
deleted file mode 100644
index 277aa91bdd5..00000000000
--- a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-017.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[css3-text-line-break-opclns-017.html]
-  type: reftest
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-024.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-024.html.ini
deleted file mode 100644
index 242cdbb5d5d..00000000000
--- a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-024.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[css3-text-line-break-opclns-024.html]
-  type: reftest
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-050.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-050.html.ini
new file mode 100644
index 00000000000..3e0b732a20f
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-050.html.ini
@@ -0,0 +1,2 @@
+[css3-text-line-break-opclns-050.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-054.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-054.html.ini
new file mode 100644
index 00000000000..247462a9f2f
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-054.html.ini
@@ -0,0 +1,2 @@
+[css3-text-line-break-opclns-054.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-059.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-059.html.ini
new file mode 100644
index 00000000000..926f5631fe8
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-059.html.ini
@@ -0,0 +1,2 @@
+[css3-text-line-break-opclns-059.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-121.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-121.html.ini
deleted file mode 100644
index 13d0e188107..00000000000
--- a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-121.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[css3-text-line-break-opclns-121.html]
-  type: reftest
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-129.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-129.html.ini
deleted file mode 100644
index 44905d87b41..00000000000
--- a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-129.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[css3-text-line-break-opclns-129.html]
-  type: reftest
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-164.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-164.html.ini
new file mode 100644
index 00000000000..2853708ba60
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-164.html.ini
@@ -0,0 +1,2 @@
+[css3-text-line-break-opclns-164.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-165.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-165.html.ini
new file mode 100644
index 00000000000..8bcf1b74f6e
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-opclns-165.html.ini
@@ -0,0 +1,2 @@
+[css3-text-line-break-opclns-165.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-transforms/css-transforms-3d-on-anonymous-block-001.html.ini b/tests/wpt/metadata/css/css-transforms/css-transforms-3d-on-anonymous-block-001.html.ini
deleted file mode 100644
index bbb2e5f171e..00000000000
--- a/tests/wpt/metadata/css/css-transforms/css-transforms-3d-on-anonymous-block-001.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[css-transforms-3d-on-anonymous-block-001.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/custom-elements/parser/parser-sets-attributes-and-children.html.ini b/tests/wpt/metadata/custom-elements/parser/parser-sets-attributes-and-children.html.ini
index 598fd107344..24282dc421e 100644
--- a/tests/wpt/metadata/custom-elements/parser/parser-sets-attributes-and-children.html.ini
+++ b/tests/wpt/metadata/custom-elements/parser/parser-sets-attributes-and-children.html.ini
@@ -1,4 +1,4 @@
 [parser-sets-attributes-and-children.html]
   expected:
-    if os == "mac": CRASH
+    if os == "mac": TIMEOUT
     if os == "linux": TIMEOUT
diff --git a/tests/wpt/metadata/html/dom/dynamic-markup-insertion/opening-the-input-stream/010.html.ini b/tests/wpt/metadata/html/dom/dynamic-markup-insertion/opening-the-input-stream/010.html.ini
deleted file mode 100644
index 5c0676447c8..00000000000
--- a/tests/wpt/metadata/html/dom/dynamic-markup-insertion/opening-the-input-stream/010.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[010.html]
-  type: testharness
-  [Salvagability of document.opened document]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/tabular-data/processing-model-1/span-limits.html.ini b/tests/wpt/metadata/html/semantics/tabular-data/processing-model-1/span-limits.html.ini
index f477b391508..ec05b7788e6 100644
--- a/tests/wpt/metadata/html/semantics/tabular-data/processing-model-1/span-limits.html.ini
+++ b/tests/wpt/metadata/html/semantics/tabular-data/processing-model-1/span-limits.html.ini
@@ -1,6 +1,5 @@
 [span-limits.html]
   type: testharness
-  expected: TIMEOUT
   [colspan of 1001 must be treated as 1000]
     expected: FAIL
 
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-004.html b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-004.html
index 471fce3680e..a3dfbc3e4d0 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-004.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-004.html
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>CSS Flexbox Test: Flex item - contiguous text runs - position:absolute</title>
+<title>CSS Flexbox Test: Flex item - non-contiguous text runs - position:absolute</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
-<p>There should be a space between "two" and "words" below.</p>
-<div style="display:flex">two <span style="position:absolute"></span>words</div>
+<link rel="match" href="anonymous-flex-item-split-ref.html">
+<p>The words "Two" and "lines" should not be on the same line.</p>
+<div style="display:flex;flex-direction:column">Two <span style="position:absolute"></span>lines</div>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-005.html b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-005.html
index c4a75e5000b..a7de7b7a854 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-005.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-005.html
@@ -1,12 +1,14 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>CSS Flexbox Test: Flex item - contiguous text runs - position:absolute dynamic</title>
+<title>CSS Flexbox Test: Flex item - non-contiguous text runs - position:absolute dynamic</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
-<p>There should be a space between "two" and "words" below.</p>
-<div style="display:flex">two <span id="absSpan"></span>words</div>
+<link rel="match" href="anonymous-flex-item-split-ref.html">
+<p>The words "Two" and "lines" should not be on the same line.</p>
+<div style="display:flex;flex-direction:column">Two <span id="absSpan"></span>lines</div>
 <script>
+  absSpan.style.display = "none";
   document.body.offsetTop;
   absSpan.style.position = "absolute";
+  absSpan.style.display = "inline";
 </script>
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-006.html b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-006.html
index 8544618efa4..6320b814294 100644
--- a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-006.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-006.html
@@ -1,12 +1,12 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>CSS Flexbox Test: Flex item - contiguous text runs - position:absolute and node removal</title>
+<title>CSS Flexbox Test: Flex item - non-contiguous text runs - position:absolute and node removal</title>
 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-items">
-<link rel="match" href="anonymous-flex-item-ref.html">
+<link rel="match" href="anonymous-flex-item-split-ref.html">
 <style>.abs { position:absolute }</style>
-<p>There should be a space between "two" and "words" below.</p>
-<div style="display:flex">two <span class="abs"></span><span id="spanRemove"></span><span class="abs"></span>words</div>
+<p>The words "Two" and "lines" should not be on the same line.</p>
+<div style="display:flex;flex-direction:column">Two <span class="abs"></span><span id="spanRemove"></span><span class="abs"></span>lines</div>
 <script>
   document.body.offsetTop;
   spanRemove.remove();
diff --git a/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-split-ref.html b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-split-ref.html
new file mode 100644
index 00000000000..163efd401c4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/anonymous-flex-item-split-ref.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Reftest Reference</title>
+<link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org">
+<p>The words "Two" and "lines" should not be on the same line.</p>
+Two<br>
+lines
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/alternates-order.html b/tests/wpt/web-platform-tests/css/css-fonts/alternates-order.html
index b1baeadf1cd..e5310b3aadf 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/alternates-order.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/alternates-order.html
@@ -3,10 +3,10 @@
 <head>
 <title>CSS Test: feature value matching for font-variant-alternates</title>
 <link rel="author" title="John Daggett" href="mailto:jdaggett@mozilla.com"/>
-<link rel="help" href="http://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop"/>
-<link rel="help" href="http://www.w3.org/TR/css-fonts-3/#font-feature-values"/>
+<link rel="help" href="http://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop"/>
+<link rel="help" href="http://www.w3.org/TR/css-fonts-4/#font-feature-values"/>
 <link rel="match" href="alternates-order-ref.html"/>
-<meta name="flags" content=""/>
+
 <meta name="assert" content="Case and order of font family name or feature name should not affect alternate rendered"/>
 <style type="text/css">
 @font-face {
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-01.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-01.html
index 0cdd2f5ac15..82c465fed55 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-01.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-01.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: normal; low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-01-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <meta name="assert" content="None of the features listed below are enabled. ">
 <style>
   @font-face {
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-02.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-02.html
index dfc76b9396d..9610508177d 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-02.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-02.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: historical-forms; low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-02-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <meta name="assert" content="Enables display of historical forms (OpenType feature: hist)">
 <style>
   @font-face {
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-03.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-03.html
index 491b732d02c..4270e2e0d3c 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-03.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-03.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: stylistic(); low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-03-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <link rel="help" href="https://drafts.csswg.org/css-fonts/#font-feature-values">
 <meta name="assert" content="Enables display of stylistic alternates (font specific, OpenType feature: salt &lt;feature-index&gt;)">
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-04.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-04.html
index 526b616dafe..abd361bbf8f 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-04.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-04.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: stylistic(); low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-04-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <link rel="help" href="https://drafts.csswg.org/css-fonts/#font-feature-values">
 <meta name="assert" content="Enables display of stylistic alternates (font specific, OpenType feature: salt &lt;feature-index&gt;)">
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-05.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-05.html
index eca5a3dc6ad..5ea6450da6a 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-05.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-05.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: stylistic(); low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-05-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <link rel="help" href="https://drafts.csswg.org/css-fonts/#font-feature-values">
 <meta name="assert" content="Enables display of stylistic alternates (font specific, OpenType feature: salt &lt;feature-index&gt;)">
 <style>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-06.html b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-06.html
index bf41b92a52c..bbeca548f63 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-06.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/font-variant-alternates-06.html
@@ -4,8 +4,8 @@
 <title>CSS Test:  font-variant-alternates: styleset(); low level equivalence</title>
 <link rel="author" title="Chris Lilley" href="chris@w3.org">
 <link rel="match" href="font-variant-alternates-06-ref.html">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-variant-alternates-prop">
-<link rel="help" href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-variant-alternates-prop">
+<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-feature-settings-prop">
 <link rel="help" href="https://drafts.csswg.org/css-fonts/#font-feature-values">
 <meta name="assert" content="Enables display with stylistic sets (font specific, OpenType feature: ss&lt;feature-index&gt;">
 <style>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html
new file mode 100644
index 00000000000..c591be46479
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute-redirect-on-load.https.sub.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src=/resources/testdriver.js></script>
+  <script src=/resources/testdriver-vendor.js></script>
+  <script src=/feature-policy/resources/featurepolicy.js></script>
+  <script src=/feature-policy/resources/picture-in-picture.js></script>
+  <script>
+  'use strict';
+  const relative_path = '/feature-policy/resources/feature-policy-picture-in-picture.html';
+  const base_src = '/feature-policy/resources/redirect-on-load.html#';
+  const same_origin_src = base_src + relative_path;
+  const cross_origin_src = base_src + 'https://{{domains[www]}}:{{ports[https][0]}}' +
+    relative_path;
+  const header = 'Feature-Policy allow="picture-in-picture"';
+
+  async_test(t => {
+    test_feature_availability(
+        'picture-in-picture', t, same_origin_src,
+        expect_feature_available_default, 'picture-in-picture');
+  }, header + ' allows same-origin navigation in an iframe.');
+
+  async_test(t => {
+    test_feature_availability(
+        'picture-in-picture', t, cross_origin_src,
+        expect_feature_unavailable_default, 'picture-in-picture');
+  }, header + ' disallows cross-origin navigation in an iframe.');
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html
new file mode 100644
index 00000000000..8a0a4374b2d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy-attribute.https.sub.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src=/resources/testdriver.js></script>
+  <script src=/resources/testdriver-vendor.js></script>
+  <script src=/feature-policy/resources/featurepolicy.js></script>
+  <script src=/feature-policy/resources/picture-in-picture.js></script>
+  <script>
+  'use strict';
+  const same_origin_src = '/feature-policy/resources/feature-policy-picture-in-picture.html';
+  const cross_origin_src = 'https://{{domains[www]}}:{{ports[https][0]}}' +
+    same_origin_src;
+  const feature_name = 'Feature policy "picture-in-picture"';
+  const header = 'allow="picture-in-picture" attribute';
+
+  async_test(t => {
+    test_feature_availability(
+        'picture-in-picture', t, same_origin_src,
+        expect_feature_available_default, 'picture-in-picture');
+  }, feature_name + ' can be enabled in same-origin iframe using ' + header);
+
+  async_test(t => {
+    test_feature_availability(
+        'picture-in-picture', t, cross_origin_src,
+        expect_feature_available_default, 'picture-in-picture');
+  }, feature_name + ' can be enabled in cross-origin iframe using ' + header);
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html
new file mode 100644
index 00000000000..0f8a0c06652
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src=/resources/testdriver.js></script>
+  <script src=/resources/testdriver-vendor.js></script>
+  <script src=/feature-policy/resources/featurepolicy.js></script>
+  <script src=/feature-policy/resources/picture-in-picture.js></script>
+  <script>
+  'use strict';
+  const same_origin_src = '/feature-policy/resources/feature-policy-picture-in-picture.html';
+  const cross_origin_src = 'https://{{domains[www]}}:{{ports[https][0]}}' +
+    same_origin_src;
+  const header = 'Feature-Policy header: picture-in-picture *';
+
+  async_test(t => {
+    isPictureInPictureAllowed().then(t.step_func_done((result) => {
+      assert_true(result);
+    }));
+  }, header + ' allows the top-level document.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, same_origin_src,
+        expect_feature_available_default);
+  }, header + ' allows same-origin iframes.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, cross_origin_src,
+        expect_feature_available_default);
+  }, header + ' allows cross-origin iframes.');
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html.headers b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html.headers
new file mode 100644
index 00000000000..0204b73b18a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-allowed-by-feature-policy.https.sub.html.headers
@@ -0,0 +1 @@
+Feature-Policy: picture-in-picture *
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-default-feature-policy.https.sub.html b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-default-feature-policy.https.sub.html
new file mode 100644
index 00000000000..6f820166f1d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-default-feature-policy.https.sub.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src=/resources/testdriver.js></script>
+  <script src=/resources/testdriver-vendor.js></script>
+  <script src=/feature-policy/resources/featurepolicy.js></script>
+  <script src=/feature-policy/resources/picture-in-picture.js></script>
+  <script>
+  'use strict';
+  const same_origin_src = '/feature-policy/resources/feature-policy-picture-in-picture.html';
+  const cross_origin_src = 'https://{{domains[www]}}:{{ports[https][0]}}' +
+    same_origin_src;
+  const header = 'Default "picture-in-picture" feature policy ["self"]';
+
+  async_test(t => {
+    isPictureInPictureAllowed().then(t.step_func_done((result) => {
+      assert_true(result);
+    }));
+  }, header + ' allows the top-level document.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, same_origin_src,
+        expect_feature_available_default);
+  }, header + ' allows same-origin iframes.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, cross_origin_src,
+        expect_feature_unavailable_default,);
+  }, header + ' disallows cross-origin iframes.');
+
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html
new file mode 100644
index 00000000000..5080c806485
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src=/resources/testdriver.js></script>
+  <script src=/resources/testdriver-vendor.js></script>
+  <script src=/feature-policy/resources/featurepolicy.js></script>
+  <script src=/feature-policy/resources/picture-in-picture.js></script>
+  <script>
+  'use strict';
+  const same_origin_src = '/feature-policy/resources/feature-policy-picture-in-picture.html';
+  const cross_origin_src = 'https://{{domains[www]}}:{{ports[https][0]}}' +
+    same_origin_src;
+  const header = 'Feature-Policy header: picture-in-picture "none"';
+
+  async_test(t => {
+    isPictureInPictureAllowed().then(t.step_func_done((result) => {
+      assert_false(result);
+    }));
+  }, header + ' disallows the top-level document.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, same_origin_src,
+        expect_feature_unavailable_default);
+  }, header + ' disallows same-origin iframes.');
+
+  async_test(t => {
+    test_feature_availability('picture-in-picture', t, cross_origin_src,
+        expect_feature_unavailable_default,);
+  }, header + ' disallows cross-origin iframes.');
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html.headers b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html.headers
new file mode 100644
index 00000000000..1759381fdc4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/picture-in-picture-disabled-by-feature-policy.https.sub.html.headers
@@ -0,0 +1 @@
+Feature-Policy: picture-in-picture 'none'
diff --git a/tests/wpt/web-platform-tests/feature-policy/resources/feature-policy-picture-in-picture.html b/tests/wpt/web-platform-tests/feature-policy/resources/feature-policy-picture-in-picture.html
new file mode 100644
index 00000000000..436682d8754
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/resources/feature-policy-picture-in-picture.html
@@ -0,0 +1,10 @@
+<script src=/feature-policy/resources/picture-in-picture.js></script>
+<script>
+'use strict';
+
+window.addEventListener('load', () => {
+  isPictureInPictureAllowed().then(result => {
+    window.parent.postMessage({ enabled: result }, '*');
+  });
+}, { once: true });
+</script>
diff --git a/tests/wpt/web-platform-tests/feature-policy/resources/picture-in-picture.js b/tests/wpt/web-platform-tests/feature-policy/resources/picture-in-picture.js
new file mode 100644
index 00000000000..7ccd0f8837f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/feature-policy/resources/picture-in-picture.js
@@ -0,0 +1,13 @@
+function isPictureInPictureAllowed() {
+  return new Promise((resolve, reject) => {
+    const video = document.createElement('video');
+    video.requestPictureInPicture()
+    .then(() => resolve(document.pictureInPictureEnabled))
+    .catch(e => {
+      if (e.name == 'NotAllowedError')
+        resolve(document.pictureInPictureEnabled);
+      else
+        resolve(false);
+    });
+  });
+}
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/html/dom/elements/global-attributes/title-manual.html b/tests/wpt/web-platform-tests/html/dom/elements/global-attributes/title-manual.html
new file mode 100644
index 00000000000..d781172bbad
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/dom/elements/global-attributes/title-manual.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<title>The title attribute</title>
+<style>
+div > * { display: inline }
+link::before { content: "link" }
+</style>
+<p>Hover each word below. The tooltip for each of them should be "PASS".</p>
+<div title=PASS>div <link> <style>style</style> <dfn>dfn</dfn> <abbr>abbr</abbr> <menuitem>menuitem</menuitem></div>
diff --git a/tests/wpt/web-platform-tests/webvr/idlharness.html b/tests/wpt/web-platform-tests/webvr/idlharness.https.html
similarity index 100%
rename from tests/wpt/web-platform-tests/webvr/idlharness.html
rename to tests/wpt/web-platform-tests/webvr/idlharness.https.html