[Media Router] Remove binary messaging implementation.

chrome/browser/media/android/router/media_router_android.cc

 // Copyright 2015 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 "chrome/browser/media/android/router/media_router_android.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 166 matching lines @@
   ScopedJavaLocalRef<jstring> jmessage =
           base::android::ConvertUTF8ToJavaString(env, message);
   Java_ChromeMediaRouter_sendStringMessage(env, java_media_router_, jroute_id,
                                            jmessage, callback_id);
 }
 
 void MediaRouterAndroid::SendRouteBinaryMessage(
     const MediaRoute::Id& route_id,
     std::unique_ptr<std::vector<uint8_t>> data,
     const SendRouteMessageCallback& callback) {
-  int callback_id = message_callbacks_.Add(
-      base::MakeUnique<SendRouteMessageCallback>(callback));
-  JNIEnv* env = base::android::AttachCurrentThread();
-  ScopedJavaLocalRef<jstring> jroute_id =
-      base::android::ConvertUTF8ToJavaString(env, route_id);
-  ScopedJavaLocalRef<jbyteArray> jbyte_array =
-      base::android::ToJavaByteArray(env, &((*data)[0]), data->size());
-  Java_ChromeMediaRouter_sendBinaryMessage(env, java_media_router_, jroute_id,
-                                           jbyte_array, callback_id);
+  // Binary messaging is not supported on Android.
+  callback.Run(false);
 }
 
 void MediaRouterAndroid::AddIssue(const IssueInfo& issue_info) {
   NOTIMPLEMENTED();
 }
 
 void MediaRouterAndroid::ClearIssue(const Issue::Id& issue_id) {
   NOTIMPLEMENTED();
 }
 
@@ skipping 232 matching lines @@
     return;
 
   std::vector<RouteMessage> messages(1);
   messages.front().type = RouteMessage::TEXT;
   messages.front().text = ConvertJavaStringToUTF8(env, jmessage);
   for (auto& observer : *it->second.get())
     observer.OnMessagesReceived(messages);
 }
 
 }  // namespace media_router