Implemented support for GL constext share groups in the renderer process.

content/common/gpu/gpu_command_buffer_stub.h

 // Copyright (c) 2011 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_GPU_COMMAND_BUFFER_STUB_H_
 #define CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
 #pragma once
 
 #if defined(ENABLE_GPU)
 
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "base/process.h"
 #include "base/task.h"
 #include "content/common/gpu/media/gpu_video_decode_accelerator.h"
 #include "gpu/command_buffer/service/command_buffer_service.h"
+#include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_message.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
 class GpuChannel;
 class GpuWatchdog;
 
 class GpuCommandBufferStub
     : public IPC::Channel::Listener,
       public IPC::Message::Sender,
       public base::SupportsWeakPtr<GpuCommandBufferStub> {
  public:
   GpuCommandBufferStub(
       GpuChannel* channel,
+      GpuCommandBufferStub* share_group,
       gfx::PluginWindowHandle handle,
       const gfx::Size& size,
       const gpu::gles2::DisallowedExtensions& disallowed_extensions,
       const std::string& allowed_extensions,
       const std::vector<int32>& attribs,
       int32 route_id,
       int32 renderer_id,
       int32 render_view_id,
       GpuWatchdog* watchdog,
       bool software);
@@ skipping 80 matching lines @@
 #endif  // defined(OS_MACOSX)
 
   void ResizeCallback(gfx::Size size);
   void ReportState();
 
   // The lifetime of objects of this class is managed by a GpuChannel. The
   // GpuChannels destroy all the GpuCommandBufferStubs that they own when they
   // are destroyed. So a raw pointer is safe.
   GpuChannel* channel_;
 
+  // The group of contexts that share namespaces with this context.
+  scoped_refptr<gpu::gles2::ContextGroup> context_group_;
+
   gfx::PluginWindowHandle handle_;
   gfx::Size initial_size_;
   gpu::gles2::DisallowedExtensions disallowed_extensions_;
   std::string allowed_extensions_;
   std::vector<int32> requested_attribs_;
   int32 route_id_;
   bool software_;
   uint32 last_flush_count_;
 
   // The following two fields are used on Mac OS X to identify the window
@@ skipping 14 matching lines @@
 
   // The video decoder associated with this stub, if any.
   scoped_ptr<GpuVideoDecodeAccelerator> video_decoder_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 };
 
 #endif  // defined(ENABLE_GPU)
 
 #endif  // CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_