[Media Router] Replace route messaging API.

chrome/browser/media/router/mojo/media_router_mojo_metrics.h

 // Copyright 2016 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 CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_METRICS_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_METRICS_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/time/time.h"
 
@@ skipping 16 matching lines @@
   CREATE_ROUTE = 0,
   JOIN_ROUTE = 1,
   TERMINATE_ROUTE = 2,
   SEND_SESSION_MESSAGE = 3,
   SEND_SESSION_BINARY_MESSAGE = 4,
   DETACH_ROUTE = 5,
   START_OBSERVING_MEDIA_SINKS = 6,
   STOP_OBSERVING_MEDIA_SINKS = 7,
   START_OBSERVING_MEDIA_ROUTES = 8,
   STOP_OBSERVING_MEDIA_ROUTES = 9,
-  LISTEN_FOR_ROUTE_MESSAGES = 10,
+  START_LISTENING_FOR_ROUTE_MESSAGES = 10,

[mark a. foltz, 2016/07/02 01:18:43]

Please update the corresponding histogram

[imcheng, 2016/07/06 17:56:23]

Done.

   STOP_LISTENING_FOR_ROUTE_MESSAGES = 11,
   CONNECTION_ERROR = 12,
   REGISTER_MEDIA_ROUTE_PROVIDER = 13,
   CONNECT_ROUTE_BY_ROUTE_ID = 14,
   ENABLE_MDNS_DISCOVERY = 15,
   UPDATE_MEDIA_SINKS = 16,
   SEARCH_SINKS = 17,
 
   // NOTE: Add entries only immediately above this line.
   TOTAL_COUNT = 18
@@ skipping 44 matching lines @@
 
   // Returns the version status of the Media Router component extension.
   static MediaRouteProviderVersion GetMediaRouteProviderVersion(
       const base::Version& extension_version,
       const base::Version& browser_version);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_MOJO_METRICS_H_