content: Always allocate GpuMemoryBuffers on UI thread.

content/browser/renderer_host/render_process_host_impl.h

 // 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_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/process/process.h"
 #include "base/timer/timer.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/browser/power_monitor_message_broadcaster.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/gpu_data_manager_observer.h"
 #include "content/public/browser/render_process_host.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_platform_file.h"
 #include "mojo/public/cpp/bindings/interface_ptr.h"
 
+#if defined(OS_MACOSX)
+#include "base/mac/scoped_cftyperef.h"
+#endif
+
 struct ViewHostMsg_CompositorSurfaceBuffersSwapped_Params;
 
 namespace base {
 class CommandLine;
 class MessageLoop;
 }
 
 namespace gfx {
 class Size;
+struct GpuMemoryBufferHandle;
 }
 
 namespace content {
 class AudioRendererHost;
 class BrowserDemuxerAndroid;
 class GpuMessageFilter;
 class MessagePortMessageFilter;
 class MojoApplicationHost;
 #if defined(ENABLE_WEBRTC)
 class P2PSocketDispatcherHost;
@@ skipping 266 matching lines @@
   void ProcessDied(bool already_dead);
 
   virtual void OnGpuSwitching() OVERRIDE;
 
 #if defined(ENABLE_WEBRTC)
   // Sends |file_for_transit| to the render process.
   void SendAecDumpFileToRenderer(IPC::PlatformFileForTransit file_for_transit);
   void SendDisableAecDumpToRenderer();
 #endif
 
+  // GpuMemoryBuffer allocation handler.
+  void OnAllocateGpuMemoryBuffer(uint32 width,
+                                 uint32 height,
+                                 uint32 internalformat,
+                                 uint32 usage,
+                                 IPC::Message* reply);
+  void GpuMemoryBufferAllocated(IPC::Message* reply,
+                                const gfx::GpuMemoryBufferHandle& handle);
+
   scoped_ptr<MojoApplicationHost> mojo_application_host_;
   bool mojo_activation_required_;
 
   // The registered IPC listener objects. When this list is empty, we should
   // delete ourselves.
   IDMap<IPC::Listener> listeners_;
 
   // The count of currently visible widgets.  Since the host can be a container
   // for multiple widgets, it uses this count to determine when it should be
   // backgrounded.
@@ skipping 99 matching lines @@
   // Message filter and dispatcher for screen orientation.
   ScreenOrientationDispatcherHost* screen_orientation_dispatcher_host_;
 
   int worker_ref_count_;
 
   // Records the time when the process starts surviving for workers for UMA.
   base::TimeTicks survive_for_worker_start_time_;
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
+#if defined(OS_MACOSX)
+  base::ScopedCFTypeRef<CFTypeRef> last_io_surface_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_