Revert 226264 "Be able to build cast_unittest and related target..."

trunk/src/media/cast/video_receiver/video_decoder_unittest.cc

Index: trunk/src/media/cast/video_receiver/video_decoder_unittest.cc
===================================================================
--- trunk/src/media/cast/video_receiver/video_decoder_unittest.cc	(revision 226266)
+++ trunk/src/media/cast/video_receiver/video_decoder_unittest.cc	(working copy)
@@ -36,13 +36,7 @@
   }
 
   int number_times_called() {return num_called_;}
-
- protected:
-  virtual ~TestVideoDecoderCallback() {}
-
  private:
-  friend class base::RefCountedThreadSafe<TestVideoDecoderCallback>;
-
   int num_called_;
 };
 
@@ -55,7 +49,7 @@
     video_decoder_callback_ = new TestVideoDecoderCallback();
   }
 
-  virtual ~VideoDecoderTest() {}
+  ~VideoDecoderTest() {}
   virtual void SetUp() {
     task_runner_ = new test::FakeTaskRunner(&testing_clock_);
     cast_thread_ = new CastThread(task_runner_, NULL, NULL,