Run same tests for layout-2020 and layout-2013 (#30092)

Most tests were only being run for layout-2013, not for layout-2020.
This wasn't great since layout-2020 is now the default.

So this patch unifies the lists of included tests for both layouts.
For layout-2013 this implies adding css/css-content/, css/css-logical/
and css/css-masking/clip/.
For layout-2020 this implies adding several additional css tests, and
also tests like dom/, js/, html/, etc.

tests/wpt/meta/webmessaging/event.source.xorigin.sub.htm.ini

@@ -0,0 +1,3 @@
+[event.source.xorigin.sub.htm]
+  [Test Description: Cross-origin: event.source returns the WindowProxy of the source window.]
+    expected: FAIL

tests/wpt/meta/webmessaging/messageerror.html.ini

@@ -0,0 +1,6 @@
+[messageerror.html]
+  [The onmessageerror content attribute must be compiled into the onmessageerror property]
+    expected: FAIL
+
+  [The onmessageerror content attribute must execute when an event is dispatched on the window]
+    expected: FAIL

tests/wpt/meta/webmessaging/postMessage_cross_domain_image_transfer_2d.sub.htm.ini

@@ -0,0 +1,9 @@
+[postMessage_cross_domain_image_transfer_2d.sub.htm]
+  [sending 2D canvas ImageBitmap to http://web-platform.test:8000]
+    expected: FAIL
+
+  [sending 2D canvas ImageBitmap to http://www1.web-platform.test:8000]
+    expected: FAIL
+
+  [sending 2D canvas ImageBitmap to http://not-web-platform.test:8000]
+    expected: FAIL

tests/wpt/meta/webmessaging/with-ports/011.html.ini

@@ -0,0 +1,3 @@
+[011.html]
+  [posting an imagedata (from a cloned canvas) in an array]
+    expected: FAIL

tests/wpt/meta/webmessaging/without-ports/011.html.ini

@@ -0,0 +1,3 @@
+[011.html]
+  [posting an imagedata (from a cloned canvas) in an array]
+    expected: FAIL

tests/wpt/meta/webmessaging/without-ports/026.html.ini

@@ -0,0 +1,3 @@
+[026.html]
+  [Cloning objects with getter properties]
+    expected: FAIL

tests/wpt/meta/webmessaging/without-ports/028.html.ini

@@ -0,0 +1,3 @@
+[028.html]
+  [Cloning objects, preserving sharing #2]
+    expected: FAIL

tests/wpt/meta/webmessaging/worker_postMessage_user_activation.tentative.html.ini

@@ -0,0 +1,3 @@
+[worker_postMessage_user_activation.tentative.html]
+  [Post Message from a worker]
+    expected: FAIL