Move context-related callbacks into OutputSurface

cc/trees/single_thread_proxy.cc

 // Copyright 2011 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 "cc/trees/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "cc/base/thread.h"
 #include "cc/output/context_provider.h"
@@ skipping 350 matching lines @@
 }
 
 void SingleThreadProxy::ForceSerializeOnSwapBuffers() {
   {
     DebugScopedSetImplThread impl(this);
     if (renderer_initialized_)
       layer_tree_host_impl_->renderer()->DoNoOp();
   }
 }
 
-void SingleThreadProxy::OnSwapBuffersCompleteOnImplThread() { NOTREACHED(); }
-
 bool SingleThreadProxy::CommitAndComposite(
     base::TimeTicks frame_begin_time,
     gfx::Rect device_viewport_damage_rect,
     LayerTreeHostImpl::FrameData* frame) {
   DCHECK(Proxy::IsMainThread());
 
   if (!layer_tree_host_->InitializeRendererIfNeeded())
     return false;
 
   scoped_refptr<cc::ContextProvider> offscreen_context_provider;
@@ skipping 85 matching lines @@
 
 bool SingleThreadProxy::CommitPendingForTesting() { return false; }
 
 skia::RefPtr<SkPicture> SingleThreadProxy::CapturePicture() {
   // Impl-side painting only.
   NOTREACHED();
   return skia::RefPtr<SkPicture>();
 }
 
 }  // namespace cc