Use gfx:: Geometry types for the resource provider and layer updater classes.

cc/content_layer_client.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ContentLayerChromiumClient_h
 #define ContentLayerChromiumClient_h
 
 class SkCanvas;
 
+namespace gfx {
+class Rect;
+class RectF;
+}
+
 namespace cc {
-class FloatRect;
-class IntRect;
 
 class ContentLayerClient {
 public:
-    virtual void paintContents(SkCanvas*, const IntRect& clip, FloatRect& opaque) = 0;
+    virtual void paintContents(SkCanvas*, const gfx::Rect& clip, gfx::RectF& opaque) = 0;
 
 protected:
     virtual ~ContentLayerClient() { }
 };
 
 }
 
 #endif // ContentLayerChromiumClient_h