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

cc/playback/discardable_image_map_unittest.cc

Index: cc/playback/discardable_image_map_unittest.cc
diff --git a/cc/playback/discardable_image_map_unittest.cc b/cc/playback/discardable_image_map_unittest.cc
index 9797a2feeb79fc3a708f2482db75a0c5a5670f40..4c8012119d76f3d4fdd26c0b13a7dcb5b543412a 100644
--- a/cc/playback/discardable_image_map_unittest.cc
+++ b/cc/playback/discardable_image_map_unittest.cc
@@ -56,6 +56,7 @@ class DiscardableImageMapTest : public testing::Test {
 TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectTest) {
   gfx::Rect visible_rect(2048, 2048);
   FakeContentLayerClient content_layer_client;
+  content_layer_client.set_bounds(visible_rect.size());
 
   // Discardable pixel refs are found in the following grids:
   // |---|---|---|---|
@@ -132,6 +133,7 @@ TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectNonZeroLayer) {
   // Make sure visible rect fits into the layer size.
   gfx::Size layer_size(visible_rect.right(), visible_rect.bottom());
   FakeContentLayerClient content_layer_client;
+  content_layer_client.set_bounds(layer_size);
 
   // Discardable pixel refs are found in the following grids:
   // |---|---|---|---|
@@ -232,6 +234,7 @@ TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectNonZeroLayer) {
 TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectOnePixelQuery) {
   gfx::Rect visible_rect(2048, 2048);
   FakeContentLayerClient content_layer_client;
+  content_layer_client.set_bounds(visible_rect.size());
 
   // Discardable pixel refs are found in the following grids:
   // |---|---|---|---|
@@ -291,6 +294,7 @@ TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectOnePixelQuery) {
 TEST_F(DiscardableImageMapTest, GetDiscardableImagesInRectMassiveImage) {
   gfx::Rect visible_rect(2048, 2048);
   FakeContentLayerClient content_layer_client;
+  content_layer_client.set_bounds(visible_rect.size());
 
   skia::RefPtr<SkImage> discardable_image;
   discardable_image = CreateDiscardableImage(gfx::Size(1 << 25, 1 << 25));