Add CCDelegatingRenderer, and corresponding IPCs

cc/CCRenderPass.h

Index: cc/CCRenderPass.h
diff --git a/cc/CCRenderPass.h b/cc/CCRenderPass.h
index cdfa958dd27ea0de44b19ec20780d5eb8e97a231..a1af511224b574a97d969a87f9835a4c31102922 100644
--- a/cc/CCRenderPass.h
+++ b/cc/CCRenderPass.h
@@ -17,6 +17,10 @@
 #include <public/WebTransformationMatrix.h>
 #include <vector>
 
+namespace IPC {
+template <class P> struct ParamTraits;
+};
+
 namespace cc {
 
 class CCLayerImpl;
@@ -95,7 +99,9 @@ public:
 
     bool hasOcclusionFromOutsideTargetSurface() const { return m_hasOcclusionFromOutsideTargetSurface; }
     void setHasOcclusionFromOutsideTargetSurface(bool hasOcclusionFromOutsideTargetSurface) { m_hasOcclusionFromOutsideTargetSurface = hasOcclusionFromOutsideTargetSurface; }
+    const CCSharedQuadStateList& sharedQuadStateList() const { return m_sharedQuadStateList; }
 protected:
+    friend struct IPC::ParamTraits<CCRenderPass>;
     CCRenderPass(Id, IntRect outputRect, const WebKit::WebTransformationMatrix& transformToRootTarget);
 
     Id m_id;