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

cc/trees/layer_tree_host_impl.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/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "cc/animation/scrollbar_animation_controller.h"
 #include "cc/animation/timing_function.h"
 #include "cc/base/math_util.h"
-#include "cc/base/thread.h"
 #include "cc/base/util.h"
 #include "cc/debug/debug_rect_history.h"
 #include "cc/debug/frame_rate_counter.h"
 #include "cc/debug/overdraw_metrics.h"
 #include "cc/debug/paint_time_counter.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/debug/traced_value.h"
 #include "cc/input/page_scale_animation.h"
 #include "cc/input/top_controls_manager.h"
 #include "cc/layers/append_quads_data.h"
@@ skipping 732 matching lines @@
   return draw_frame;
 }
 
 void LayerTreeHostImpl::MainThreadHasStoppedFlinging() {
   if (input_handler_client_)
     input_handler_client_->MainThreadHasStoppedFlinging();
 }
 
 void LayerTreeHostImpl::UpdateBackgroundAnimateTicking(
     bool should_background_tick) {
+  DCHECK(proxy_->IsImplThread());
+
   bool enabled = should_background_tick &&
                  !animation_registrar_->active_animation_controllers().empty();
 
   // Lazily create the time_source adapter so that we can vary the interval for
   // testing.
   if (!time_source_client_adapter_) {
     time_source_client_adapter_ = LayerTreeHostImplTimeSourceAdapter::Create(
         this,
         DelayBasedTimeSource::Create(LowFrequencyAnimationInterval(),
-                                     proxy_->CurrentThread()->TaskRunner()));
+                                     proxy_->ImplThreadTaskRunner()));
   }
 
   time_source_client_adapter_->SetActive(enabled);
 }
 
 void LayerTreeHostImpl::SetViewportDamage(gfx::Rect damage_rect) {
   viewport_damage_rect_.Union(damage_rect);
 }
 
 static inline RenderPass* FindRenderPassById(
@@ skipping 1533 matching lines @@
 }
 
 void LayerTreeHostImpl::SetDebugState(const LayerTreeDebugState& debug_state) {
   if (debug_state_.continuous_painting != debug_state.continuous_painting)
     paint_time_counter_->ClearHistory();
 
   debug_state_ = debug_state;
 }
 
 }  // namespace cc