Add Media Router Mojo impl code.

chrome/browser/media/router/media_router_mojo_impl_factory.h

 // 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.
 
-#ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_IMPL_FACTORY_H_
-#define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_IMPL_FACTORY_H_
+#ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_MOJO_IMPL_FACTORY_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_MOJO_IMPL_FACTORY_H_
 
 #include "base/memory/singleton.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 
 namespace content {
 class BrowserContext;
 }  // namespace content
 
 namespace media_router {
 
-class MediaRouterImpl;
+class MediaRouterMojoImpl;
 
-// A factory that returns a MediaRouter object for a given BrowserContext,
-// creating one lazily if needed.
-class MediaRouterImplFactory : public BrowserContextKeyedServiceFactory {
+// A factory that lazily returns a MediaRouterMojoImpl object for a given
+// BrowserContext, creating one lazily if needed.
+class MediaRouterMojoImplFactory : public BrowserContextKeyedServiceFactory {
  public:
-  static MediaRouterImpl* GetMediaRouterForBrowserContext(
+  static MediaRouterMojoImpl* GetApiForBrowserContext(
       content::BrowserContext* context);
-  static MediaRouterImplFactory* GetInstance();
 
  private:
-  friend struct DefaultSingletonTraits<MediaRouterImplFactory>;
+  friend struct DefaultSingletonTraits<MediaRouterMojoImplFactory>;
 
-  MediaRouterImplFactory();
-  ~MediaRouterImplFactory() override;
+  MediaRouterMojoImplFactory();
+  ~MediaRouterMojoImplFactory() override;
 
   // BrowserContextKeyedBaseFactory
   KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* context) const override;
   content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const override;
 
-  DISALLOW_COPY_AND_ASSIGN(MediaRouterImplFactory);
+  DISALLOW_COPY_AND_ASSIGN(MediaRouterMojoImplFactory);
 };
 
 }  // namespace media_router
 
-#endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_IMPL_FACTORY_H_
+#endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_MOJO_IMPL_FACTORY_H_