Add CCDelegatingRenderer, and corresponding IPCs

cc/ipc/cc_param_traits.h

Index: cc/ipc/cc_param_traits.h
diff --git a/cc/ipc/cc_param_traits.h b/cc/ipc/cc_param_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..491dc0ea9abe7152e2804f34d1e16bd5e3e64511
--- /dev/null
+++ b/cc/ipc/cc_param_traits.h
@@ -0,0 +1,41 @@
+// Copyright (c) 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 CONTENT_COMMON_GPU_CLIENT_CC_PARAM_TRAITS_H_
+#define CONTENT_COMMON_GPU_CLIENT_CC_PARAM_TRAITS_H_
+
+#include "cc/compositor_frame.h"
+#include "cc/transferable_resource.h"
+#include "content/common/content_export.h"
+#include "ipc/ipc_message_utils.h"
+
+namespace IPC {
+
+template<>
+struct CONTENT_EXPORT ParamTraits<cc::Mailbox> {
+  typedef cc::Mailbox param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template<>
+struct CONTENT_EXPORT ParamTraits<cc::CompositorFrame> {
+  typedef cc::CompositorFrame param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template<>
+struct CONTENT_EXPORT ParamTraits<cc::CompositorFrameAck> {
+  typedef cc::CompositorFrameAck param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
+}  // namespace IPC
+
+#endif  // CONTENT_COMMON_GPU_CLIENT_CC_PARAM_TRAITS_H_