[#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

Review URL: https://codereview.chromium.org/145313006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247769 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 6 deletions

diff --git a/cc/test/fake_picture_pile_impl.cc b/cc/test/fake_picture_pile_impl.cc
index bc751ed..9b168e6 100644
--- a/cc/test/fake_picture_pile_impl.cc
+++ b/cc/test/fake_picture_pile_impl.cc
@@ -17,8 +17,8 @@ FakePicturePileImpl::FakePicturePileImpl() {}
 FakePicturePileImpl::~FakePicturePileImpl() {}
 
 scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateFilledPile(
-    gfx::Size tile_size,
-    gfx::Size layer_bounds) {
+    const gfx::Size& tile_size,
+    const gfx::Size& layer_bounds) {
   scoped_refptr<FakePicturePileImpl> pile(new FakePicturePileImpl());
   pile->tiling().SetTotalSize(layer_bounds);
   pile->tiling().SetMaxTextureSize(tile_size);
@@ -32,8 +32,8 @@ scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateFilledPile(
 }
 
 scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateEmptyPile(
-    gfx::Size tile_size,
-    gfx::Size layer_bounds) {
+    const gfx::Size& tile_size,
+    const gfx::Size& layer_bounds) {
   scoped_refptr<FakePicturePileImpl> pile(new FakePicturePileImpl());
   pile->tiling().SetTotalSize(layer_bounds);
   pile->tiling().SetMaxTextureSize(tile_size);
@@ -44,8 +44,8 @@ scoped_refptr<FakePicturePileImpl> FakePicturePileImpl::CreateEmptyPile(
 
 scoped_refptr<FakePicturePileImpl>
 FakePicturePileImpl::CreatePileWithRecordedRegion(
-    gfx::Size tile_size,
-    gfx::Size layer_bounds,
+    const gfx::Size& tile_size,
+    const gfx::Size& layer_bounds,
     const Region& recorded_region) {
   scoped_refptr<FakePicturePileImpl> pile(new FakePicturePileImpl());
   pile->tiling().SetTotalSize(layer_bounds);