Cast: Remove LoggingStats in favor of event subscribers.

media/cast/cast_environment.h

 // 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.
 
 #ifndef MEDIA_CAST_CAST_ENVIRONMENT_H_
 #define MEDIA_CAST_CAST_ENVIRONMENT_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 17 matching lines @@
     // primarily encoding / decoding but also re-sampling.
     AUDIO,
     // The video encoder thread is where the video processing is done.
     VIDEO,
   };
 
   CastEnvironment(
       scoped_ptr<base::TickClock> clock,
       scoped_refptr<base::SingleThreadTaskRunner> main_thread_proxy,
       scoped_refptr<base::SingleThreadTaskRunner> audio_thread_proxy,
-      scoped_refptr<base::SingleThreadTaskRunner> video_thread_proxy,
-      const CastLoggingConfig& logging_config);
+      scoped_refptr<base::SingleThreadTaskRunner> video_thread_proxy);
 
   // These are the same methods in message_loop.h, but are guaranteed to either
   // get posted to the MessageLoop if it's still alive, or be deleted otherwise.
   // They return true iff the thread existed and the task was posted.  Note that
   // even if the task is posted, there's no guarantee that it will run, since
   // the target thread may already have a Quit message in its queue.
   bool PostTask(ThreadId identifier,
                 const tracked_objects::Location& from_here,
                 const base::Closure& task);
 
@@ skipping 37 matching lines @@
   scoped_ptr<base::TickClock> clock_;
   scoped_ptr<LoggingImpl> logging_;
 
   DISALLOW_COPY_AND_ASSIGN(CastEnvironment);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_ENVIRONMENT_H_