Revert of cc: Add image decode queue functionality to image manager.

cc/trees/layer_tree_host_in_process.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_in_process.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 104 matching lines @@
       rendering_stats_instrumentation_(RenderingStatsInstrumentation::Create()),
       settings_(*params->settings),
       debug_state_(settings_.initial_debug_state),
       visible_(false),
       has_gpu_rasterization_trigger_(false),
       content_is_suitable_for_gpu_rasterization_(true),
       gpu_rasterization_histogram_recorded_(false),
       did_complete_scale_animation_(false),
       id_(s_layer_tree_host_sequence_number.GetNext() + 1),
       task_graph_runner_(params->task_graph_runner),
-      image_serialization_processor_(params->image_serialization_processor),
-      image_worker_task_runner_(params->image_worker_task_runner) {
+      image_serialization_processor_(params->image_serialization_processor) {
   DCHECK(task_graph_runner_);
   DCHECK(layer_tree_);
   DCHECK_NE(compositor_mode_, CompositorMode::REMOTE);
 
   rendering_stats_instrumentation_->set_record_rendering_stats(
       debug_state_.RecordRenderingStats());
 }
 
 void LayerTreeHostInProcess::InitializeThreaded(
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
@@ skipping 302 matching lines @@
     LayerTreeHostImplClient* client) {
   DCHECK(task_runner_provider_->IsImplThread());
 
   const bool supports_impl_scrolling = task_runner_provider_->HasImplThread();
   std::unique_ptr<MutatorHost> mutator_host_impl =
       layer_tree_->mutator_host()->CreateImplInstance(supports_impl_scrolling);
 
   std::unique_ptr<LayerTreeHostImpl> host_impl = LayerTreeHostImpl::Create(
       settings_, client, task_runner_provider_.get(),
       rendering_stats_instrumentation_.get(), task_graph_runner_,
-      std::move(mutator_host_impl), id_, std::move(image_worker_task_runner_));
+      std::move(mutator_host_impl), id_);
   host_impl->SetHasGpuRasterizationTrigger(has_gpu_rasterization_trigger_);
   host_impl->SetContentIsSuitableForGpuRasterization(
       content_is_suitable_for_gpu_rasterization_);
   task_graph_runner_ = NULL;
   input_handler_weak_ptr_ = host_impl->AsWeakPtr();
   return host_impl;
 }
 
 void LayerTreeHostInProcess::DidLoseCompositorFrameSink() {
   TRACE_EVENT0("cc", "LayerTreeHostInProcess::DidLoseCompositorFrameSink");
@@ skipping 393 matching lines @@
   return compositor_mode_ == CompositorMode::SINGLE_THREADED;
 }
 
 bool LayerTreeHostInProcess::IsThreaded() const {
   DCHECK(compositor_mode_ != CompositorMode::THREADED ||
          task_runner_provider_->HasImplThread());
   return compositor_mode_ == CompositorMode::THREADED;
 }
 
 }  // namespace cc