Allow one-copy task tile worker pool to use compressed textures.

cc/layers/picture_layer_impl_unittest.cc

Index: cc/layers/picture_layer_impl_unittest.cc
diff --git a/cc/layers/picture_layer_impl_unittest.cc b/cc/layers/picture_layer_impl_unittest.cc
index 1839690cfc53247fb021559f844bc2ea6b325e02..a43707450827a8abbed9c20d0ceef39fa2af2e25 100644
--- a/cc/layers/picture_layer_impl_unittest.cc
+++ b/cc/layers/picture_layer_impl_unittest.cc
@@ -4984,8 +4984,10 @@ TEST_F(TileSizeTest, TileSizes) {
 
   layer->set_gpu_raster_max_texture_size(host_impl_.device_viewport_size());
   result = layer->CalculateTileSize(gfx::Size(10000, 10000));
-  EXPECT_EQ(result.width(), 2000 + 2 * PictureLayerTiling::kBorderTexels);
-  EXPECT_EQ(result.height(), 500 + 2);
+  EXPECT_EQ(result.width(),
+            MathUtil::UncheckedRoundUp(
+                2000 + 2 * PictureLayerTiling::kBorderTexels, 4));
+  EXPECT_EQ(result.height(), 504);  // 500 + 2, 4-byte aligned.
 
   // Clamp and round-up, when smaller than viewport.
   // Tile-height doubles to 50% when width shrinks to <= 50%.
@@ -4993,7 +4995,7 @@ TEST_F(TileSizeTest, TileSizes) {
   layer->set_gpu_raster_max_texture_size(host_impl_.device_viewport_size());
   result = layer->CalculateTileSize(gfx::Size(447, 10000));
   EXPECT_EQ(result.width(), 448);
-  EXPECT_EQ(result.height(), 500 + 2);
+  EXPECT_EQ(result.height(), 504);  // 500 + 2, 4-byte aliged.
 
   // Largest layer is 50% of viewport width (rounded up), and
   // 50% of viewport in height.
@@ -5002,7 +5004,7 @@ TEST_F(TileSizeTest, TileSizes) {
   EXPECT_EQ(result.height(), 448);
   result = layer->CalculateTileSize(gfx::Size(500, 499));
   EXPECT_EQ(result.width(), 512);
-  EXPECT_EQ(result.height(), 500 + 2);
+  EXPECT_EQ(result.height(), 504);  // 500 + 2, 4-byte aligned.
 }
 
 TEST_F(NoLowResPictureLayerImplTest, LowResWasHighResCollision) {