Remove image_decode_tasks_enabled flag.

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 824 matching lines @@
   }
 
   int num_raster_threads = 0;
   std::string string_value =
       command_line.GetSwitchValueASCII(switches::kNumRasterThreads);
   bool parsed_num_raster_threads =
       base::StringToInt(string_value, &num_raster_threads);
   DCHECK(parsed_num_raster_threads) << string_value;
   DCHECK_GT(num_raster_threads, 0);
 
-  // TODO(vmpstr): If the flag sticks, we should clean it up and always have
-  // image decode tasks.
-  are_image_decode_tasks_enabled_ = true;
-
   categorized_worker_pool_->Start(num_raster_threads);
 
   discardable_memory::mojom::DiscardableSharedMemoryManagerPtr manager_ptr;
   if (IsRunningInMash()) {
 #if defined(USE_AURA)
     GetServiceManagerConnection()->GetConnector()->BindInterface(
         ui::mojom::kServiceName, &manager_ptr);
 #else
     NOTREACHED();
 #endif
@@ skipping 708 matching lines @@
                               : base::ThreadTaskRunnerHandle::Get().get();
   return base::MakeUnique<cc::BackToBackBeginFrameSource>(
       base::MakeUnique<cc::DelayBasedTimeSource>(
           compositor_impl_side_task_runner));
 }
 
 cc::TaskGraphRunner* RenderThreadImpl::GetTaskGraphRunner() {
   return categorized_worker_pool_->GetTaskGraphRunner();
 }
 
-bool RenderThreadImpl::AreImageDecodeTasksEnabled() {
-  return are_image_decode_tasks_enabled_;
-}
-
 bool RenderThreadImpl::IsThreadedAnimationEnabled() {
   return is_threaded_animation_enabled_;
 }
 
 bool RenderThreadImpl::IsScrollAnimatorEnabled() {
   return is_scroll_animator_enabled_;
 }
 
 bool RenderThreadImpl::IsSurfaceSynchronizationEnabled() {
   return is_surface_synchronization_enabled_;
@@ skipping 861 matching lines @@
   }
 }
 
 void RenderThreadImpl::OnRendererInterfaceRequest(
     mojom::RendererAssociatedRequest request) {
   DCHECK(!renderer_binding_.is_bound());
   renderer_binding_.Bind(std::move(request));
 }
 
 }  // namespace content