Convert fast/repaint/window-resize*.html into reftests

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
index 16386d4d08e0f22bce690c9756495421fcd524eb..128133ab3b6bad55952bde47bb1a0e9a88637996 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base.py
@@ -1571,9 +1571,22 @@ class Port(object):
         pass
 
     def physical_test_suites(self):
+        small_tile_flags = [
+            '--default-tile-width=16',
+            '--default-tile-height=16',
+            '--max-untiled-layer-width=16',
+            '--max-untiled-layer-height=16'
+        ]
+
         return [
             # For example, to turn on force-compositing-mode in the svg/ directory:
             # PhysicalTestSuite('svg', ['--force-compositing-mode']),
+
+            # Use small tiles to make show most rect under-invalidations.
+            PhysicalTestSuite('fast/repaint', small_tile_flags),
+            PhysicalTestSuite('paint/invalidation', small_tile_flags),
+            PhysicalTestSuite('compositing', small_tile_flags),

[Xianzhu, 2016/06/08 17:01:20]

Do you think this is proper?

[pdr., 2016/06/08 17:32:18]

These choices make sense to me. My only worry is that it will be incredibly
confusing to have a test work differently in compositing/ compared to other
directories. Is there any way to specify the tile size in the test itself via
the internals api?

[Xianzhu, 2016/06/08 17:46:40]

Currently the tile size configurations are initialized when a WebView is
created. I'm not sure if we can change them on the fly from javascript executed
from the WebView.

+
             PhysicalTestSuite('fast/text', ["--enable-direct-write", "--enable-font-antialiasing"]),
         ]