work-in-progress patch to fix context lost black video

content/renderer/media/android/stream_texture_factory_synchronous_impl.cc

 // Copyright 2014 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.
 
 #include "content/renderer/media/android/stream_texture_factory_synchronous_impl.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 164 matching lines @@
 
 void StreamTextureFactorySynchronousImpl::SetStreamTextureSize(
     int32 stream_id,
     const gfx::Size& size) {}
 
 gpu::gles2::GLES2Interface* StreamTextureFactorySynchronousImpl::ContextGL() {
   DCHECK(context_provider_);
   return context_provider_->ContextGL();
 }
 
+void StreamTextureFactorySynchronousImpl::AddObserver(
+    StreamTextureFactoryContextObserver* obs) {
+  context_provider_->AddObserver(obs);
+}
+
+void StreamTextureFactorySynchronousImpl::RemoveObserver(
+    StreamTextureFactoryContextObserver* obs) {
+  context_provider_->RemoveObserver(obs);
+}
+
 }  // namespace content