cc: Remove cc::Thread and cc::ThreadImpl.

ui/compositor/compositor.cc

 // Copyright (c) 2012 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/compositor.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "cc/base/switches.h"
-#include "cc/base/thread_impl.h"
 #include "cc/input/input_handler.h"
 #include "cc/layers/layer.h"
 #include "cc/output/context_provider.h"
 #include "cc/output/output_surface.h"
 #include "cc/trees/layer_tree_host.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/compositor/compositor_observer.h"
 #include "ui/compositor/compositor_switches.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/compositor/layer.h"
@@ skipping 486 matching lines @@
       command_line->HasSwitch(cc::switches::kUIShowSurfaceDamageRects);
   settings.initial_debug_state.show_screen_space_rects =
       command_line->HasSwitch(cc::switches::kUIShowScreenSpaceRects);
   settings.initial_debug_state.show_replica_screen_space_rects =
       command_line->HasSwitch(cc::switches::kUIShowReplicaScreenSpaceRects);
   settings.initial_debug_state.show_occluding_rects =
       command_line->HasSwitch(cc::switches::kUIShowOccludingRects);
   settings.initial_debug_state.show_non_occluding_rects =
       command_line->HasSwitch(cc::switches::kUIShowNonOccludingRects);
 
-  scoped_ptr<cc::Thread> thread;
-  if (g_compositor_thread) {
-    thread = cc::ThreadImpl::CreateForDifferentThread(
-        g_compositor_thread->message_loop_proxy());
-  }
+  scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner =
+      g_compositor_thread ? g_compositor_thread->message_loop_proxy() : NULL;
 
-  host_ = cc::LayerTreeHost::Create(this, settings, thread.Pass());
+  host_ = cc::LayerTreeHost::Create(this, settings, compositor_task_runner);
   host_->SetRootLayer(root_web_layer_);
   host_->SetLayerTreeHostClientReady();
 }
 
 Compositor::~Compositor() {
   CancelCompositorLock();
   DCHECK(!compositor_lock_);
 
   // Don't call |CompositorDelegate::ScheduleDraw| from this point.
   delegate_ = NULL;
@@ skipping 309 matching lines @@
 COMPOSITOR_EXPORT void DisableTestCompositor() {
   ResetImplicitFactory();
   g_test_compositor_enabled = false;
 }
 
 COMPOSITOR_EXPORT bool IsTestCompositorEnabled() {
   return g_test_compositor_enabled;
 }
 
 }  // namespace ui