Remove static thread pointers from CC

cc/layer_tree_host_impl.h

Index: cc/layer_tree_host_impl.h
diff --git a/cc/layer_tree_host_impl.h b/cc/layer_tree_host_impl.h
index 17ef60207113593965922e6b687f0a842da66030..9b64de7859ba5d3caf785b73623d3c253af57d21 100644
--- a/cc/layer_tree_host_impl.h
+++ b/cc/layer_tree_host_impl.h
@@ -103,7 +103,7 @@ class LayerTreeHostImpl : public InputHandlerClient,
     typedef std::vector<LayerImpl*> LayerList;
 
 public:
-    static scoped_ptr<LayerTreeHostImpl> create(const LayerTreeSettings&, LayerTreeHostImplClient*);
+    static scoped_ptr<LayerTreeHostImpl> create(const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*);
     virtual ~LayerTreeHostImpl();
 
     // InputHandlerClient implementation
@@ -229,6 +229,7 @@ public:
     FrameRateCounter* fpsCounter() const { return m_fpsCounter.get(); }
     DebugRectHistory* debugRectHistory() const { return m_debugRectHistory.get(); }
     ResourceProvider* resourceProvider() const { return m_resourceProvider.get(); }
+    Proxy* proxy() const { return m_proxy; }
 
     class CullRenderPassesWithCachedTextures {
     public:
@@ -261,7 +262,7 @@ public:
     static void removeRenderPasses(RenderPassCuller, FrameData&);
 
 protected:
-    LayerTreeHostImpl(const LayerTreeSettings&, LayerTreeHostImplClient*);
+    LayerTreeHostImpl(const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*);
 
     void animatePageScale(double monotonicTime);
     void animateScrollbars(double monotonicTime);
@@ -276,6 +277,7 @@ protected:
     virtual base::TimeDelta lowFrequencyAnimationInterval() const;
 
     LayerTreeHostImplClient* m_client;
+    Proxy* m_proxy;
     int m_sourceFrameNumber;
 
 private: