[#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

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

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247426 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 6 deletions

diff --git a/cc/layers/tiled_layer_impl_unittest.cc b/cc/layers/tiled_layer_impl_unittest.cc
index 377b04d..948ab37 100644
--- a/cc/layers/tiled_layer_impl_unittest.cc
+++ b/cc/layers/tiled_layer_impl_unittest.cc
@@ -23,8 +23,8 @@ class TiledLayerImplTest : public testing::Test {
   TiledLayerImplTest() : host_impl_(&proxy_) {}
 
   scoped_ptr<TiledLayerImpl> CreateLayerNoTiles(
-      gfx::Size tile_size,
-      gfx::Size layer_size,
+      const gfx::Size& tile_size,
+      const gfx::Size& layer_size,
       LayerTilingData::BorderTexelOption border_texels) {
     scoped_ptr<TiledLayerImpl> layer =
         TiledLayerImpl::Create(host_impl_.active_tree(), 1);
@@ -46,8 +46,8 @@ class TiledLayerImplTest : public testing::Test {
   // Create a default tiled layer with textures for all tiles and a default
   // visibility of the entire layer size.
   scoped_ptr<TiledLayerImpl> CreateLayer(
-      gfx::Size tile_size,
-      gfx::Size layer_size,
+      const gfx::Size& tile_size,
+      const gfx::Size& layer_size,
       LayerTilingData::BorderTexelOption border_texels) {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayerNoTiles(tile_size, layer_size, border_texels);
@@ -69,8 +69,8 @@ class TiledLayerImplTest : public testing::Test {
 
   void GetQuads(QuadList* quads,
                 SharedQuadStateList* shared_states,
-                gfx::Size tile_size,
-                gfx::Size layer_size,
+                const gfx::Size& tile_size,
+                const gfx::Size& layer_size,
                 LayerTilingData::BorderTexelOption border_texel_option,
                 const gfx::Rect& visible_content_rect) {
     scoped_ptr<TiledLayerImpl> layer =