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

cc/trees/layer_tree_host.h

 // 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.
 
 #ifndef CC_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <limits>
 #include <vector>
 
@@ skipping 67 matching lines @@
   bool using_egl_image;
   bool allow_partial_texture_updates;
   bool using_offscreen_context3d;
   int max_texture_size;
   bool avoid_pow2_textures;
   bool using_map_image;
 };
 
 class CC_EXPORT LayerTreeHost : NON_EXPORTED_BASE(public RateLimiterClient) {
  public:
-  static scoped_ptr<LayerTreeHost> Create(LayerTreeHostClient* client,
-                                          const LayerTreeSettings& settings,
-                                          scoped_ptr<Thread> impl_thread);
+  static scoped_ptr<LayerTreeHost> Create(
+      LayerTreeHostClient* client,
+      const LayerTreeSettings& settings,
+      scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner);
   virtual ~LayerTreeHost();
 
   void SetLayerTreeHostClientReady();
 
   // Returns true if any LayerTreeHost is alive.
   static bool AnyLayerTreeHostInstanceExists();
 
   void set_needs_filter_context() { needs_filter_context_ = true; }
   bool needs_offscreen_context() const {
     return needs_filter_context_;
@@ skipping 153 matching lines @@
   scoped_ptr<base::Value> AsValue() const;
 
   bool in_paint_layer_contents() const { return in_paint_layer_contents_; }
 
   void IncrementLCDTextMetrics(
       bool update_total_num_cc_layers_can_use_lcd_text,
       bool update_total_num_cc_layers_will_use_lcd_text);
 
  protected:
   LayerTreeHost(LayerTreeHostClient* client, const LayerTreeSettings& settings);
-  bool Initialize(scoped_ptr<Thread> impl_thread);
+  bool Initialize(scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner);
   bool InitializeForTesting(scoped_ptr<Proxy> proxy_for_testing);
 
  private:
   bool InitializeProxy(scoped_ptr<Proxy> proxy);
 
   bool PaintLayerContents(const LayerList& render_surface_layer_list,
                           ResourceUpdateQueue* quue);
   bool PaintMasksForRenderSurface(Layer* render_surface_layer,
                                   ResourceUpdateQueue* queue,
                                   RenderingStats* stats);
@@ skipping 89 matching lines @@
     int64 total_num_cc_layers_will_use_lcd_text;
   };
   LCDTextMetrics lcd_text_metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_