cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/thread_proxy.h

Index: cc/thread_proxy.h
diff --git a/cc/thread_proxy.h b/cc/thread_proxy.h
index 721bb6884c530fe0c9139582267eed1adf233cb2..d94b1777af1958dc69fd1a15045bdcbca1341724 100644
--- a/cc/thread_proxy.h
+++ b/cc/thread_proxy.h
@@ -29,7 +29,7 @@ public:
     virtual ~ThreadProxy();
 
     // Proxy implementation
-    virtual bool compositeAndReadback(void *pixels, const IntRect&) OVERRIDE;
+    virtual bool compositeAndReadback(void *pixels, const gfx::Rect&) OVERRIDE;
     virtual void startPageScaleAnimation(const IntSize& targetPosition, bool useAnchor, float scale, base::TimeDelta duration) OVERRIDE;
     virtual void finishAllRendering() OVERRIDE;
     virtual bool isStarted() const OVERRIDE;
@@ -105,7 +105,7 @@ private:
         CompletionEvent completion;
         bool success;
         void* pixels;
-        IntRect rect;
+        gfx::Rect rect;
     };
     void forceBeginFrameOnImplThread(CompletionEvent*);
     void beginFrameCompleteOnImplThread(CompletionEvent*, ResourceUpdateQueue*);