GpuVideoDecoderHost runs on IO thread instead of Render thread

Move GpuVideoDecoderHost to IO thread and change GpuVideoServiceHost to
be a MessageFilter.

BUG=53714
TEST=Tree is green. Will pending on WebKit changes to make this work.

Review URL: http://codereview.chromium.org/3462015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@61854 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 0 deletions

diff --git a/chrome/renderer/gpu_channel_host.h b/chrome/renderer/gpu_channel_host.h
index c139219..e6eecea 100644
--- a/chrome/renderer/gpu_channel_host.h
+++ b/chrome/renderer/gpu_channel_host.h
@@ -20,6 +20,7 @@
 #include "ipc/ipc_sync_channel.h"
 
 class CommandBufferProxy;
+class GpuVideoServiceHost;
 
 // Encapsulates an IPC channel between the renderer and one plugin process.
 // On the plugin side there's a corresponding GpuChannel.
@@ -72,6 +73,10 @@ class GpuChannelHost : public IPC::Channel::Listener,
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxy* command_buffer);
 
+  GpuVideoServiceHost* gpu_video_service_host() {
+    return gpu_video_service_host_.get();
+  }
+
  private:
   State state_;
 
@@ -88,6 +93,10 @@ class GpuChannelHost : public IPC::Channel::Listener,
   typedef base::hash_map<int, IPC::Channel::Listener*> ProxyMap;
   ProxyMap proxies_;
 
+  // This is a MessageFilter to intercept IPC messages and distribute them
+  // to the corresponding GpuVideoDecoderHost.
+  scoped_ptr<GpuVideoServiceHost> gpu_video_service_host_;
+
   DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
 };