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

cc/trees/layer_tree_host.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.h"
 
 #include <algorithm>
 #include <stack>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/base/math_util.h"
-#include "cc/base/thread.h"
 #include "cc/debug/overdraw_metrics.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/input/top_controls_manager.h"
 #include "cc/layers/heads_up_display_layer.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_iterator.h"
 #include "cc/layers/render_surface.h"
 #include "cc/layers/scrollbar_layer.h"
 #include "cc/resources/prioritized_resource_manager.h"
@@ skipping 27 matching lines @@
 
 RendererCapabilities::~RendererCapabilities() {}
 
 bool LayerTreeHost::AnyLayerTreeHostInstanceExists() {
   return s_num_layer_tree_instances > 0;
 }
 
 scoped_ptr<LayerTreeHost> LayerTreeHost::Create(
     LayerTreeHostClient* client,
     const LayerTreeSettings& settings,
-    scoped_ptr<Thread> impl_thread) {
+    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
   scoped_ptr<LayerTreeHost> layer_tree_host(new LayerTreeHost(client,
                                                               settings));
-  if (!layer_tree_host->Initialize(impl_thread.Pass()))
+  if (!layer_tree_host->Initialize(impl_task_runner))
     return scoped_ptr<LayerTreeHost>();
   return layer_tree_host.Pass();
 }
 
 LayerTreeHost::LayerTreeHost(LayerTreeHostClient* client,
                              const LayerTreeSettings& settings)
     : animating_(false),
       needs_full_tree_sync_(true),
       needs_filter_context_(false),
       client_(client),
@@ skipping 17 matching lines @@
       in_paint_layer_contents_(false),
       total_frames_used_for_lcd_text_metrics_(0) {
   if (settings_.accelerated_animation_enabled)
     animation_registrar_ = AnimationRegistrar::Create();
   s_num_layer_tree_instances++;
 
   rendering_stats_instrumentation_->set_record_rendering_stats(
       debug_state_.RecordRenderingStats());
 }
 
-bool LayerTreeHost::Initialize(scoped_ptr<Thread> impl_thread) {
-  if (impl_thread)
-    return InitializeProxy(ThreadProxy::Create(this, impl_thread.Pass()));
+bool LayerTreeHost::Initialize(
+    scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
+  if (impl_task_runner)
+    return InitializeProxy(ThreadProxy::Create(this, impl_task_runner));
   else
     return InitializeProxy(SingleThreadProxy::Create(this));
 }
 
 bool LayerTreeHost::InitializeForTesting(scoped_ptr<Proxy> proxy_for_testing) {
   return InitializeProxy(proxy_for_testing.Pass());
 }
 
 bool LayerTreeHost::InitializeProxy(scoped_ptr<Proxy> proxy) {
   TRACE_EVENT0("cc", "LayerTreeHost::InitializeForReal");
@@ skipping 356 matching lines @@
   needs_full_tree_sync_ = true;
   SetNeedsCommit();
 }
 
 void LayerTreeHost::SetNeedsRedraw() {
   SetNeedsRedrawRect(gfx::Rect(device_viewport_size_));
 }
 
 void LayerTreeHost::SetNeedsRedrawRect(gfx::Rect damage_rect) {
   proxy_->SetNeedsRedraw(damage_rect);
-  if (!proxy_->ImplThread())
+  if (!proxy_->HasImplThread())
     client_->ScheduleComposite();
 }
 
 bool LayerTreeHost::CommitRequested() const {
   return proxy_->CommitRequested();
 }
 
 void LayerTreeHost::SetAnimationEvents(scoped_ptr<AnimationEventsVector> events,
                                        base::Time wall_clock_time) {
   DCHECK(proxy_->IsMainThread());
@@ skipping 491 matching lines @@
 void LayerTreeHost::StartRateLimiter(WebKit::WebGraphicsContext3D* context3d) {
   if (animating_)
     return;
 
   DCHECK(context3d);
   RateLimiterMap::iterator it = rate_limiters_.find(context3d);
   if (it != rate_limiters_.end()) {
     it->second->Start();
   } else {
     scoped_refptr<RateLimiter> rate_limiter =
-        RateLimiter::Create(context3d, this, proxy_->MainThread());
+        RateLimiter::Create(context3d, this, proxy_->MainThreadTaskRunner());
     rate_limiters_[context3d] = rate_limiter;
     rate_limiter->Start();
   }
 }
 
 void LayerTreeHost::StopRateLimiter(WebKit::WebGraphicsContext3D* context3d) {
   RateLimiterMap::iterator it = rate_limiters_.find(context3d);
   if (it != rate_limiters_.end()) {
     it->second->Stop();
     rate_limiters_.erase(it);
@@ skipping 23 matching lines @@
   SetNeedsCommit();
 }
 
 void LayerTreeHost::UpdateTopControlsState(TopControlsState constraints,
                                            TopControlsState current,
                                            bool animate) {
   if (!settings_.calculate_top_controls_position)
     return;
 
   // Top controls are only used in threaded mode.
-  proxy_->ImplThread()->PostTask(
+  proxy_->ImplThreadTaskRunner()->PostTask(
+      FROM_HERE,
       base::Bind(&TopControlsManager::UpdateTopControlsState,
                  top_controls_manager_weak_ptr_,
                  constraints,
                  current,
                  animate));
 }
 
 bool LayerTreeHost::BlocksPendingCommit() const {
   if (!root_layer_.get())
     return false;
@@ skipping 25 matching lines @@
     bool start_ready_animations = true;
     (*iter).second->UpdateState(start_ready_animations, NULL);
   }
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::CapturePicture() {
   return proxy_->CapturePicture();
 }
 
 }  // namespace cc