Turn off computation of the interest rect in cc in synchronized paint mode.

cc/playback/display_list_recording_source_unittest.cc

Index: cc/playback/display_list_recording_source_unittest.cc
diff --git a/cc/playback/display_list_recording_source_unittest.cc b/cc/playback/display_list_recording_source_unittest.cc
index 98f827bafe07c5e269d3e8e6173f8dad5b66b63d..bbd94674e83917c01bc7fc5fd05b1cfa346e7321 100644
--- a/cc/playback/display_list_recording_source_unittest.cc
+++ b/cc/playback/display_list_recording_source_unittest.cc
@@ -215,42 +215,6 @@ TEST(DisplayListRecordingSourceTest, ExposesEnoughNewAreaScrollScenarios) {
       current_recorded_viewport, new_recorded_viewport, layer_size));
 }
 
-// Verifies that UpdateAndExpandInvalidation calls ExposesEnoughNewArea with the
-// right arguments.
-TEST(DisplayListRecordingSourceTest,
-     ExposesEnoughNewAreaCalledWithCorrectArguments) {
-  DisplayListRecordingSource recording_source;
-  FakeContentLayerClient client;
-  Region invalidation;
-  gfx::Size layer_size(9000, 9000);
-  gfx::Rect visible_rect(0, 0, 256, 256);
-
-  recording_source.UpdateAndExpandInvalidation(
-      &client, &invalidation, layer_size, visible_rect, 0,
-      DisplayListRecordingSource::RECORD_NORMALLY);
-  EXPECT_EQ(gfx::Rect(0, 0, 4256, 4256), recording_source.recorded_viewport());
-
-  visible_rect.Offset(0, 512);
-  recording_source.UpdateAndExpandInvalidation(
-      &client, &invalidation, layer_size, visible_rect, 0,
-      DisplayListRecordingSource::RECORD_NORMALLY);
-  EXPECT_EQ(gfx::Rect(0, 0, 4256, 4256), recording_source.recorded_viewport());
-
-  // Move past the threshold for enough exposed new area.
-  visible_rect.Offset(0, 1);
-  recording_source.UpdateAndExpandInvalidation(
-      &client, &invalidation, layer_size, visible_rect, 0,
-      DisplayListRecordingSource::RECORD_NORMALLY);
-  EXPECT_EQ(gfx::Rect(0, 0, 4256, 4769), recording_source.recorded_viewport());
-
-  // Make the bottom of the potential new recorded viewport coincide with the
-  // layer's bottom edge.
-  visible_rect.Offset(0, 231);
-  recording_source.UpdateAndExpandInvalidation(
-      &client, &invalidation, layer_size, visible_rect, 0,
-      DisplayListRecordingSource::RECORD_NORMALLY);
-  EXPECT_EQ(gfx::Rect(0, 0, 4256, 4769), recording_source.recorded_viewport());
-}
 
 TEST(DisplayListRecordingSourceTest, NoGatherImageEmptyImages) {
   gfx::Rect recorded_viewport(0, 0, 256, 256);