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/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.constructor.html.ini

@@ -2,3 +2,8 @@
   [Test that OffscreenCanvas constructor handles invalid arguments correctly]
     expected: FAIL
 
+  [OffscreenCanvas constructor called as normal function]
+    expected: FAIL
+
+  [Test that calling OffscreenCanvas's constructor generates correct width and height.]
+    expected: FAIL

tests/wpt/meta/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.constructor.worker.js.ini

@@ -2,3 +2,5 @@
   [Test that OffscreenCanvas constructor handles invalid arguments correctly in a worker]
     expected: FAIL
 
+  [Test that calling OffscreenCanvas's constructor generates correct width and height.]
+    expected: FAIL

tests/wpt/meta/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.getcontext.html.ini

@@ -14,3 +14,11 @@
   [Test that getContext twice with different context type returns null the second time]
     expected: FAIL
 
+  [Test that 2dcontext.canvas should return the original OffscreenCanvas]
+    expected: FAIL
+
+  [Test that OffscreenCanvasRenderingContext2D with alpha enabled preserves the alpha]
+    expected: FAIL
+
+  [Test that 'alpha' context creation attribute is true by default]
+    expected: FAIL

tests/wpt/meta/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.getcontext.worker.js.ini

@@ -14,3 +14,11 @@
   [Test that getContext twice with different context type returns null the second time]
     expected: FAIL
 
+  [Test that 2dcontext.canvas should return the original OffscreenCanvas]
+    expected: FAIL
+
+  [Test that OffscreenCanvasRenderingContext2D with alpha enabled preserves the alpha]
+    expected: FAIL
+
+  [Test that 'alpha' context creation attribute is true by default]
+    expected: FAIL

tests/wpt/meta/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.resize.html.ini

@@ -20,3 +20,11 @@
   [Verify that writing to the width or height attribute of a placeholder canvas throws an exception even when not changing the value of the attribute.]
     expected: FAIL
 
+  [Verify that writing to the width and height attributes of an OffscreenCanvas works when there is no context attached.]
+    expected: FAIL
+
+  [Verify that resizing a 2d context resets its state.]
+    expected: FAIL
+
+  [Verify that setting the size of a 2d context to the same size it already had resets its state.]
+    expected: FAIL

tests/wpt/meta/html/canvas/offscreen/manual/the-offscreen-canvas/offscreencanvas.transferrable.html.ini

@@ -14,3 +14,5 @@
   [Test that calling getContext('2d') on a detached OffscreenCanvas throws exception.]
     expected: FAIL
 
+  [Test that transfer an OffscreenCanvas that already have a 2d context throws exception.]
+    expected: FAIL