Make WebTaskRunner ThreadSafeRefCounted

third_party/WebKit/Source/platform/scheduler/child/web_scheduler_impl.h

 // Copyright 2015 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.
 
 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_CHILD_WEB_SCHEDULER_IMPL_H_
 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_CHILD_WEB_SCHEDULER_IMPL_H_
 
 #include <memory>
 
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebScheduler.h"
 #include "public/platform/WebThread.h"
 
 namespace blink {
 namespace scheduler {
 
 class ChildScheduler;
@@ skipping 28 matching lines @@
   void removePendingNavigation(
       WebScheduler::NavigatingFrameType type) override {}
 
  private:
   static void runIdleTask(std::unique_ptr<WebThread::IdleTask> task,
                           base::TimeTicks deadline);
 
   ChildScheduler* child_scheduler_;  // NOT OWNED
   scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
   scoped_refptr<TaskQueue> timer_task_runner_;
-  std::unique_ptr<WebTaskRunnerImpl> loading_web_task_runner_;
-  std::unique_ptr<WebTaskRunnerImpl> timer_web_task_runner_;
+  RefPtr<WebTaskRunnerImpl> loading_web_task_runner_;
+  RefPtr<WebTaskRunnerImpl> timer_web_task_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebSchedulerImpl);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_CHILD_WEB_SCHEDULER_IMPL_H_