cc: Change tile manager to have a raw ptr for the task runner.

cc/tiles/tile_manager.cc

 // Copyright 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 "cc/tiles/tile_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 264 matching lines @@
   void OnTaskCompleted() override {}
 
  protected:
   ~TaskSetFinishedTaskImpl() override {}
 
   void TaskSetFinished() {
     task_runner_->PostTask(FROM_HERE, on_task_set_finished_callback_);
   }
 
  private:
-  scoped_refptr<base::SequencedTaskRunner> task_runner_;
+  base::SequencedTaskRunner* task_runner_;
   const base::Closure on_task_set_finished_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskSetFinishedTaskImpl);
 };
 
 }  // namespace
 
 RasterTaskCompletionStats::RasterTaskCompletionStats()
     : completed_count(0u), canceled_count(0u) {}
 
 std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
 RasterTaskCompletionStatsAsValue(const RasterTaskCompletionStats& stats) {
   std::unique_ptr<base::trace_event::TracedValue> state(
       new base::trace_event::TracedValue());
   state->SetInteger("completed_count",
                     base::saturated_cast<int>(stats.completed_count));
   state->SetInteger("canceled_count",
                     base::saturated_cast<int>(stats.canceled_count));
   return std::move(state);
 }
 
 TileManager::TileManager(TileManagerClient* client,
-                         scoped_refptr<base::SequencedTaskRunner> task_runner,
+                         base::SequencedTaskRunner* task_runner,
                          size_t scheduled_raster_task_limit,
                          bool use_partial_raster)
     : client_(client),
-      task_runner_(std::move(task_runner)),
+      task_runner_(task_runner),
       resource_pool_(nullptr),
       tile_task_manager_(nullptr),
       scheduled_raster_task_limit_(scheduled_raster_task_limit),
       use_partial_raster_(use_partial_raster),
       use_gpu_rasterization_(false),
       all_tiles_that_need_to_be_rasterized_are_scheduled_(true),
       did_check_for_completed_tasks_since_last_schedule_tasks_(true),
       did_oom_on_last_assign_(false),
       more_tiles_need_prepare_check_notifier_(
-          task_runner_.get(),
+          task_runner_,
           base::Bind(&TileManager::CheckIfMoreTilesNeedToBePrepared,
                      base::Unretained(this))),
-      signals_check_notifier_(task_runner_.get(),
+      signals_check_notifier_(task_runner_,
                               base::Bind(&TileManager::CheckAndIssueSignals,
                                          base::Unretained(this))),
       has_scheduled_tile_tasks_(false),
       prepare_tiles_count_(0u),
       next_tile_id_(0u),
       task_set_finished_weak_ptr_factory_(this) {}
 
 TileManager::~TileManager() {
   FinishTasksAndCleanUp();
 }
@@ skipping 830 matching lines @@
                     signals_.all_tile_tasks_completed);
   state->EndDictionary();
   return std::move(state);
 }
 
 // Utility function that can be used to create a "Task set finished" task that
 // posts |callback| to |task_runner| when run.
 scoped_refptr<TileTask> TileManager::CreateTaskSetFinishedTask(
     void (TileManager::*callback)()) {
   return make_scoped_refptr(new TaskSetFinishedTaskImpl(
-      task_runner_.get(),
+      task_runner_,
       base::Bind(callback, task_set_finished_weak_ptr_factory_.GetWeakPtr())));
 }
 
 TileManager::MemoryUsage::MemoryUsage()
     : memory_bytes_(0), resource_count_(0) {}
 
 TileManager::MemoryUsage::MemoryUsage(size_t memory_bytes,
                                       size_t resource_count)
     : memory_bytes_(static_cast<int64_t>(memory_bytes)),
       resource_count_(static_cast<int>(resource_count)) {
@@ skipping 60 matching lines @@
 void TileManager::Signals::reset() {
   ready_to_activate = false;
   did_notify_ready_to_activate = false;
   ready_to_draw = false;
   did_notify_ready_to_draw = false;
   all_tile_tasks_completed = false;
   did_notify_all_tile_tasks_completed = false;
 }
 
 }  // namespace cc