Add flow control between renderer and GPU processes, and, on Mac OS X,...

chrome/common/gpu_param_traits.h

 // Copyright (c) 2010 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 CHROME_COMMON_GPU_PARAM_TRAITS_H_
 #define CHROME_COMMON_GPU_PARAM_TRAITS_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/process.h"
@@ skipping 13 matching lines @@
 struct GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params {
   int32 renderer_id;
   int32 render_view_id;
   gfx::PluginWindowHandle window;
   int32 width;
   int32 height;
   uint64 identifier;
 
   GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params();
 };
+
+struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params {
+  int32 renderer_id;
+  int32 render_view_id;
+  gfx::PluginWindowHandle window;
+  uint64 surface_id;
+  int32 route_id;
+  uint64 swap_buffers_count;
+
+  GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params();
+};
 #endif
 
 namespace IPC {
 #if defined(OS_MACOSX)
 template <>
 struct ParamTraits<GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params> {
   typedef GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
+
+template <>
+struct ParamTraits<GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params> {
+  typedef GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
 #endif
 
 template <>
 struct ParamTraits<GPUInfo> {
   typedef GPUInfo param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
@@ skipping 17 matching lines @@
 struct ParamTraits<GPUCreateCommandBufferConfig> {
   typedef GPUCreateCommandBufferConfig param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #endif  // CHROME_COMMON_GPU_PARAM_TRAITS_H_