cc: Stop converting update rect from int to float to int.

cc/layers/contents_scaling_layer_unittest.cc

Index: cc/layers/contents_scaling_layer_unittest.cc
diff --git a/cc/layers/contents_scaling_layer_unittest.cc b/cc/layers/contents_scaling_layer_unittest.cc
index 8cbd517f893de74cc92ddbd8b5a88e8d7259c757..9865079216a71759b84ac4d7564b3c3f5592aba7 100644
--- a/cc/layers/contents_scaling_layer_unittest.cc
+++ b/cc/layers/contents_scaling_layer_unittest.cc
@@ -18,19 +18,19 @@ class MockContentsScalingLayer : public ContentsScalingLayer {
   MockContentsScalingLayer()
       : ContentsScalingLayer() {}
 
-  virtual void SetNeedsDisplayRect(const gfx::RectF& dirty_rect) override {
+  virtual void SetNeedsDisplayRect(const gfx::Rect& dirty_rect) override {
     last_needs_display_rect_ = dirty_rect;
     ContentsScalingLayer::SetNeedsDisplayRect(dirty_rect);
   }
 
-  const gfx::RectF& LastNeedsDisplayRect() const {
+  const gfx::Rect& LastNeedsDisplayRect() const {
     return last_needs_display_rect_;
   }
 
  private:
   virtual ~MockContentsScalingLayer() {}
 
-  gfx::RectF last_needs_display_rect_;
+  gfx::Rect last_needs_display_rect_;
 };
 
 static void CalcDrawProps(FakeLayerTreeHost* host, float device_scale_factor) {