Chromecast: virtual/override cleanup.

chromecast/media/cma/base/balanced_media_task_runner_factory.cc

Index: chromecast/media/cma/base/balanced_media_task_runner_factory.cc
diff --git a/chromecast/media/cma/base/balanced_media_task_runner_factory.cc b/chromecast/media/cma/base/balanced_media_task_runner_factory.cc
index 48413c0a9e2996c13c1b3fda87e5192180049d33..f365534e457e0375302bc83eef001e47c70c289e 100644
--- a/chromecast/media/cma/base/balanced_media_task_runner_factory.cc
+++ b/chromecast/media/cma/base/balanced_media_task_runner_factory.cc
@@ -32,13 +32,13 @@ class MediaTaskRunnerWithNotification : public MediaTaskRunner {
       const base::Closure& shutdown_cb);
 
   // MediaTaskRunner implementation.
-  virtual bool PostMediaTask(
+  bool PostMediaTask(
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       base::TimeDelta timestamp) override;
 
  private:
-  virtual ~MediaTaskRunnerWithNotification();
+  ~MediaTaskRunnerWithNotification() override;
 
   scoped_refptr<MediaTaskRunner> const media_task_runner_;
 
@@ -93,13 +93,13 @@ class BalancedMediaTaskRunner
   base::TimeDelta GetMediaTimestamp() const;
 
   // MediaTaskRunner implementation.
-  virtual bool PostMediaTask(
+  bool PostMediaTask(
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       base::TimeDelta timestamp) override;
 
  private:
-  virtual ~BalancedMediaTaskRunner();
+  ~BalancedMediaTaskRunner() override;
 
   scoped_refptr<base::SingleThreadTaskRunner> const task_runner_;