cc: Remove the unused compositor thread variable and interface.

ui/compositor/test/in_process_context_factory.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 "ui/compositor/test/in_process_context_factory.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/threading/thread.h"
 #include "cc/output/compositor_frame.h"
@@ skipping 161 matching lines @@
 
 cc::SharedBitmapManager* InProcessContextFactory::GetSharedBitmapManager() {
   return &shared_bitmap_manager_;
 }
 
 gpu::GpuMemoryBufferManager*
 InProcessContextFactory::GetGpuMemoryBufferManager() {
   return &gpu_memory_buffer_manager_;
 }
 
-base::MessageLoopProxy* InProcessContextFactory::GetCompositorMessageLoop() {
-  if (!compositor_thread_)
-    return NULL;
-  return compositor_thread_->message_loop_proxy().get();
-}
-
 scoped_ptr<cc::SurfaceIdAllocator>
 InProcessContextFactory::CreateSurfaceIdAllocator() {
   return make_scoped_ptr(
       new cc::SurfaceIdAllocator(next_surface_id_namespace_++));
 }
 
 void InProcessContextFactory::ResizeDisplay(ui::Compositor* compositor,
                                             const gfx::Size& size) {
   if (!per_compositor_data_.count(compositor))
     return;
   per_compositor_data_[compositor]->display()->Resize(size);
 }
 
 }  // namespace ui