[MediaRouter] The minimal change to make everything build on Android.

chrome/browser/media/android/router/media_router_android.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_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_H_
+#define CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_H_
+
+#include "chrome/browser/media/router/media_router.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace media_router {
+
+// A stub implementation of MediaRouter interface on Android.
+class MediaRouterAndroid : public MediaRouter {
+ public:
+  ~MediaRouterAndroid() override;
+
+  // MediaRouter implementation.
+  void CreateRoute(
+      const MediaSource::Id& source_id,
+      const MediaSink::Id& sink_id,
+      const GURL& origin,
+      int tab_id,
+      const std::vector<MediaRouteResponseCallback>& callbacks) override;
+  void JoinRoute(
+      const MediaSource::Id& source,
+      const std::string& presentation_id,
+      const GURL& origin,
+      int tab_id,
+      const std::vector<MediaRouteResponseCallback>& callbacks) override;
+  void CloseRoute(const MediaRoute::Id& route_id) override;
+  void SendRouteMessage(const MediaRoute::Id& route_id,
+                        const std::string& message,
+                        const SendRouteMessageCallback& callback) override;
+  void ListenForRouteMessages(
+      const std::vector<MediaRoute::Id>& route_ids,
+      const PresentationSessionMessageCallback& message_cb) override;
+  void ClearIssue(const Issue::Id& issue_id) override;
+
+ private:
+  friend class MediaRouterFactory;
+
+  explicit MediaRouterAndroid(content::BrowserContext*);
+
+  // MediaRouter implementation.
+  void RegisterMediaSinksObserver(MediaSinksObserver* observer) override;
+  void UnregisterMediaSinksObserver(MediaSinksObserver* observer) override;
+  void RegisterMediaRoutesObserver(MediaRoutesObserver* observer) override;
+  void UnregisterMediaRoutesObserver(MediaRoutesObserver* observer) override;
+  void RegisterIssuesObserver(IssuesObserver* observer) override;
+  void UnregisterIssuesObserver(IssuesObserver* observer) override;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaRouterAndroid);
+};
+
+} // namespace media_router
+
+#endif  // CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_H_