VideoDecodeAccelerator now SupportsWeakPtr instead of being RefCountedThreadSafe.

content/common/gpu/client/command_buffer_proxy_impl.cc

Index: content/common/gpu/client/command_buffer_proxy_impl.cc
diff --git a/content/common/gpu/client/command_buffer_proxy_impl.cc b/content/common/gpu/client/command_buffer_proxy_impl.cc
index 80e0b1c9f6f88f67fbd3faf7fd1a137e09865b91..2d6a168500a728209d0ea53d940f4c2667303567 100644
--- a/content/common/gpu/client/command_buffer_proxy_impl.cc
+++ b/content/common/gpu/client/command_buffer_proxy_impl.cc
@@ -46,6 +46,10 @@ CommandBufferProxyImpl::~CommandBufferProxyImpl() {
     delete it->second.shared_memory;
     it->second.shared_memory = NULL;
   }
+  for (Decoders::iterator it = video_decoder_hosts_.begin();
+       it != video_decoder_hosts_.end(); ++it) {
+    it->second->Destroy();
+  }
 }
 
 bool CommandBufferProxyImpl::OnMessageReceived(const IPC::Message& message) {
@@ -483,7 +487,7 @@ void CommandBufferProxyImpl::SetNotifyRepaintTask(const base::Closure& task) {
   notify_repaint_task_ = task;
 }
 
-scoped_refptr<GpuVideoDecodeAcceleratorHost>
+GpuVideoDecodeAcceleratorHost*
 CommandBufferProxyImpl::CreateVideoDecoder(
     media::VideoCodecProfile profile,
     media::VideoDecodeAccelerator::Client* client) {
@@ -499,13 +503,13 @@ CommandBufferProxyImpl::CreateVideoDecoder(
     return NULL;
   }
 
-  scoped_refptr<GpuVideoDecodeAcceleratorHost> decoder_host =
+  GpuVideoDecodeAcceleratorHost* decoder_host =
       new GpuVideoDecodeAcceleratorHost(channel_, decoder_route_id, client);
   bool inserted = video_decoder_hosts_.insert(std::make_pair(
       decoder_route_id, decoder_host)).second;
   DCHECK(inserted);
 
-  channel_->AddRoute(decoder_route_id, decoder_host->AsWeakPtr());
+  channel_->AddRoute(decoder_route_id, base::AsWeakPtr(decoder_host));
 
   return decoder_host;
 }