Cast: Added missing DCHECKs to ThreadChecker calls and minor cleanup.

media/cast/test/end2end_unittest.cc

 // Copyright 2013 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.
 //
 // This test generate synthetic data. For audio it's a sinusoid waveform with
 // frequency kSoundFrequency and different amplitudes. For video it's a pattern
 // that is shifting by one pixel per frame, each pixels neighbors right and down
 // is this pixels value +1, since the pixel value is 8 bit it will wrap
 // frequently within the image. Visually this will create diagonally color bands
 // that moves across the screen
@@ skipping 375 matching lines @@
             task_runner_,
             task_runner_,
             task_runner_,
             task_runner_,
             task_runner_,
             task_runner_,
             GetLoggingConfigWithRawEventsAndStatsEnabled())),
         receiver_to_sender_(cast_environment_),
         sender_to_receiver_(cast_environment_),
         test_receiver_audio_callback_(new TestReceiverAudioCallback()),
-        test_receiver_video_callback_(new TestReceiverVideoCallback()),
-        event_subscriber_(task_runner_) {
+        test_receiver_video_callback_(new TestReceiverVideoCallback()) {
     testing_clock_->Advance(
         base::TimeDelta::FromMilliseconds(kStartMillisecond));
     cast_environment_->Logging()->AddRawEventSubscriber(&event_subscriber_);
   }
 
   void SetupConfig(transport::AudioCodec audio_codec,
                    int audio_sampling_frequency,
                    // TODO(miu): 3rd arg is meaningless?!?
                    bool external_audio_decoder,
                    int max_number_of_video_buffers_used) {
@@ skipping 860 matching lines @@
   EXPECT_EQ(total_event_count_for_frame, expected_event_count_for_frame);
 }
 
 // TODO(pwestin): Add repeatable packet loss test.
 // TODO(pwestin): Add test for misaligned send get calls.
 // TODO(pwestin): Add more tests that does not resample.
 // TODO(pwestin): Add test when we have starvation for our RunTask.
 
 }  // namespace cast
 }  // namespace media