Remove threading from RendererGpuVideoAcceleratorFactories

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 775b6bf5c861110e0bf9995a8f83be2c2ea382f1..1ceb29b991a688706b2b08190c3fdad91888192d 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -874,6 +874,8 @@ RenderThreadImpl::GetGpuFactories() {
   scoped_refptr<GpuChannelHost> gpu_channel_host = GetGpuChannel();
   const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
   scoped_refptr<RendererGpuVideoAcceleratorFactories> gpu_factories;
+  scoped_refptr<base::MessageLoopProxy> media_loop_proxy =
+      GetMediaThreadMessageLoopProxy();
   if (!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode)) {
     if (!gpu_va_context_provider_ ||
         gpu_va_context_provider_->DestroyedOnMainThread()) {
@@ -888,11 +890,14 @@ RenderThreadImpl::GetGpuFactories() {
                   WebKit::WebGraphicsContext3D::Attributes(),
                   GURL("chrome://gpu/RenderThreadImpl::GetGpuVDAContext3D"))),
           "GPU-VideoAccelerator-Offscreen");
+      media_loop_proxy->PostTask(FROM_HERE, base::Bind(
+          base::IgnoreResult(&cc::ContextProvider::BindToCurrentThread),

[Ami GONE FROM CHROMIUM, 2013/10/26 19:30:26]

I wonder if that IgnoreResult should be a CheckOnFailure or at least a
SpamErrorLogOnFailure or something.  Not sure what you'd do with the knowledge
though.  

+          gpu_va_context_provider_));
     }
   }
   if (gpu_channel_host) {
     gpu_factories = new RendererGpuVideoAcceleratorFactories(
-        gpu_channel_host.get(), gpu_va_context_provider_);
+        gpu_channel_host, media_loop_proxy, gpu_va_context_provider_);
   }
   return gpu_factories;
 }