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

content/renderer/media/android/stream_texture_factory_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_impl.h"
 
 #include "cc/output/context_provider.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/renderer/gpu/stream_texture_host_android.h"
@@ skipping 116 matching lines @@
 
 void StreamTextureFactoryImpl::SetStreamTextureSize(int32 stream_id,
                                                     const gfx::Size& size) {
   channel_->Send(new GpuStreamTextureMsg_SetSize(stream_id, size));
 }
 
 gpu::gles2::GLES2Interface* StreamTextureFactoryImpl::ContextGL() {
   return context_provider_->ContextGL();
 }
 
+void StreamTextureFactoryImpl::AddObserver(
+    StreamTextureFactoryContextObserver* obs) {
+}
+
+void StreamTextureFactoryImpl::RemoveObserver(
+    StreamTextureFactoryContextObserver* obs) {
+}
+
 }  // namespace content