Pass gfx structs by const ref (gfx::PointF)

cc/layers/texture_layer_impl.cc

Index: cc/layers/texture_layer_impl.cc
diff --git a/cc/layers/texture_layer_impl.cc b/cc/layers/texture_layer_impl.cc
index a7775c9067b800520311217a9579d12bdd0c899e..8728b89db9c2aaa1a8840239d992a9953aca5975 100644
--- a/cc/layers/texture_layer_impl.cc
+++ b/cc/layers/texture_layer_impl.cc
@@ -219,12 +219,12 @@ void TextureLayerImpl::SetNearestNeighbor(bool nearest_neighbor) {
   SetNeedsPushProperties();
 }
 
-void TextureLayerImpl::SetUVTopLeft(const gfx::PointF top_left) {
+void TextureLayerImpl::SetUVTopLeft(const gfx::PointF& top_left) {
   uv_top_left_ = top_left;
   SetNeedsPushProperties();
 }
 
-void TextureLayerImpl::SetUVBottomRight(const gfx::PointF bottom_right) {
+void TextureLayerImpl::SetUVBottomRight(const gfx::PointF& bottom_right) {
   uv_bottom_right_ = bottom_right;
   SetNeedsPushProperties();
 }