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

media/cast/logging/simple_event_subscriber_unittest.cc

 // Copyright 2014 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 "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/logging/logging_defines.h"
 #include "media/cast/logging/simple_event_subscriber.h"
 #include "media/cast/test/fake_single_thread_task_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 
 class SimpleEventSubscriberTest : public ::testing::Test {
  protected:
   SimpleEventSubscriberTest()
       : testing_clock_(new base::SimpleTestTickClock()),
         task_runner_(new test::FakeSingleThreadTaskRunner(testing_clock_)),
         cast_environment_(new CastEnvironment(
             scoped_ptr<base::TickClock>(testing_clock_).Pass(), task_runner_,
             task_runner_, task_runner_, task_runner_, task_runner_,
-            task_runner_, GetLoggingConfigWithRawEventsAndStatsEnabled())),
-        event_subscriber_(task_runner_) {
+            task_runner_, GetLoggingConfigWithRawEventsAndStatsEnabled())) {
     cast_environment_->Logging()->AddRawEventSubscriber(&event_subscriber_);
   }
 
   virtual ~SimpleEventSubscriberTest() {
     cast_environment_->Logging()->RemoveRawEventSubscriber(&event_subscriber_);
   }
 
   base::SimpleTestTickClock* testing_clock_;  // Owned by CastEnvironment.
   scoped_refptr<test::FakeSingleThreadTaskRunner> task_runner_;
   scoped_refptr<CastEnvironment> cast_environment_;
@@ skipping 44 matching lines @@
   event_subscriber_.GetFrameEventsAndReset(&frame_events);
   event_subscriber_.GetPacketEventsAndReset(&packet_events);
   event_subscriber_.GetGenericEventsAndReset(&generic_events);
   EXPECT_TRUE(frame_events.empty());
   EXPECT_TRUE(packet_events.empty());
   EXPECT_TRUE(generic_events.empty());
 }
 
 }  // namespace cast
 }  // namespace media