cc: Remove unnecessary task runner refptrs from schedulers.

cc/scheduler/scheduler.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/scheduler/scheduler.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/debug/devtools_instrumentation.h"
 #include "cc/debug/traced_value.h"
 #include "cc/scheduler/delay_based_time_source.h"
 
 namespace cc {
 
 scoped_ptr<Scheduler> Scheduler::Create(
     SchedulerClient* client,
     const SchedulerSettings& settings,
     int layer_tree_host_id,
-    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+    base::SingleThreadTaskRunner* task_runner,
     BeginFrameSource* external_frame_source) {
   scoped_ptr<SyntheticBeginFrameSource> synthetic_frame_source;
   if (!settings.use_external_begin_frame_source) {
     synthetic_frame_source = SyntheticBeginFrameSource::Create(
-        task_runner.get(), BeginFrameArgs::DefaultInterval());
+        task_runner, BeginFrameArgs::DefaultInterval());
   }
   scoped_ptr<BackToBackBeginFrameSource> unthrottled_frame_source =
-      BackToBackBeginFrameSource::Create(task_runner.get());
+      BackToBackBeginFrameSource::Create(task_runner);
   return make_scoped_ptr(new Scheduler(
       client, settings, layer_tree_host_id, task_runner, external_frame_source,
       synthetic_frame_source.Pass(), unthrottled_frame_source.Pass()));
 }
 
 Scheduler::Scheduler(
     SchedulerClient* client,
     const SchedulerSettings& settings,
     int layer_tree_host_id,
-    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+    base::SingleThreadTaskRunner* task_runner,
     BeginFrameSource* external_frame_source,
     scoped_ptr<SyntheticBeginFrameSource> synthetic_frame_source,
     scoped_ptr<BackToBackBeginFrameSource> unthrottled_frame_source)
     : settings_(settings),
       client_(client),
       layer_tree_host_id_(layer_tree_host_id),
       task_runner_(task_runner),
       external_frame_source_(external_frame_source),
       synthetic_frame_source_(synthetic_frame_source.Pass()),
       unthrottled_frame_source_(unthrottled_frame_source.Pass()),
@@ skipping 681 matching lines @@
 }
 
 bool Scheduler::IsBeginMainFrameSentOrStarted() const {
   return (state_machine_.commit_state() ==
               SchedulerStateMachine::COMMIT_STATE_BEGIN_MAIN_FRAME_SENT ||
           state_machine_.commit_state() ==
               SchedulerStateMachine::COMMIT_STATE_BEGIN_MAIN_FRAME_STARTED);
 }
 
 }  // namespace cc