Revert of [#7] Pass gfx structs by const ref (gfx::Size) (https://codereview.chromium.org/145313006/)

Reason for revert:
Suspected of breaking the Linux ASAN tests ( http://build.chromium.org/p/chromium.memory/builders/Linux%20ASAN%20Tests%20%283%29/builds/22104 )

Original issue's description:
> [#7] Pass gfx::Size by const ref.
>
> Any struct of size > 4 bytes should be passed by const ref.
> Passing by ref for these structs is faster than passing by value,
> especially when invoking function has multiple parameters and some
> other scenarios mentioned in the bug.
>
> BUG=159273
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=247426

TBR=danakj@chromium.org,enne@chromium.org,bulach@chromium.org,piman@chromium.org,prashant.n@samsung.com
NOTREECHECKS=true
NOTRY=true
BUG=159273

Review URL: https://codereview.chromium.org/142863008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247437 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 2 insertions, 2 deletions

diff --git a/cc/test/fake_picture_layer_tiling_client.cc b/cc/test/fake_picture_layer_tiling_client.cc
index f891b9e..acbd791 100644
--- a/cc/test/fake_picture_layer_tiling_client.cc
+++ b/cc/test/fake_picture_layer_tiling_client.cc
@@ -49,12 +49,12 @@ scoped_refptr<Tile> FakePictureLayerTilingClient::CreateTile(
       pile_.get(), tile_size_, rect, gfx::Rect(), 1, 0, 0, Tile::USE_LCD_TEXT);
 }
 
-void FakePictureLayerTilingClient::SetTileSize(const gfx::Size& tile_size) {
+void FakePictureLayerTilingClient::SetTileSize(gfx::Size tile_size) {
   tile_size_ = tile_size;
 }
 
 gfx::Size FakePictureLayerTilingClient::CalculateTileSize(
-    const gfx::Size& /* content_bounds */) const {
+    gfx::Size /* content_bounds */) const {
   return tile_size_;
 }