Cast: Remove LoggingStats in favor of event subscribers.

media/cast/logging/logging.gyp

 # 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.
 {
   'targets': [
     {
       'target_name': 'cast_common_logging',
       'type': 'static_library',
       'include_dirs': [
         '<(DEPTH)/',
       ],
       'dependencies': [
         'cast_logging_proto_lib',
         '<(DEPTH)/base/base.gyp:base',
       ],
       'export_dependent_settings': [
         'cast_logging_proto_lib',
       ],
       'sources': [
         'logging_defines.cc',
         'logging_defines.h',
         'logging_impl.cc',
         'logging_impl.h',
         'logging_raw.cc',
         'logging_raw.h',
-        'logging_stats.cc',
-        'logging_stats.h',
         'raw_event_subscriber.h',
         'simple_event_subscriber.cc',
         'simple_event_subscriber.h',
+        'stats_event_subscriber.cc',
+        'stats_event_subscriber.h',
+        'stats_util.cc',
+        'stats_util.h',
       ], # source
     },
     {
       'target_name': 'sender_logging',
       'type': 'static_library',
       'include_dirs': [
         '<(DEPTH)/',
       ],
       'dependencies': [
         'cast_common_logging',
@@ skipping 37 matching lines @@
       'export_dependent_settings': [
         'cast_logging_proto_lib',
       ],
       'sources': [
         'log_deserializer.cc',
         'log_deserializer.h',
       ], # source
     },
   ],
 }