[Media Router] Show user email in header if cloud sink is present.

chrome/browser/ui/webui/media_router/media_router_webui_message_handler.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_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 14 matching lines @@
 
 namespace media_router {
 
 class Issue;
 class MediaRoute;
 class MediaRouterUI;
 
 // The handler for Javascript messages related to the media router dialog.
 class MediaRouterWebUIMessageHandler : public content::WebUIMessageHandler {
  public:
+  enum IdentityVisibility {

[imcheng, 2016/02/17 00:51:08]

I think this should be removed since you are not passing them into the ui
anymore. These values are not mutually exclusive anyway, so I suggest just
sticking with 2 booleans.

[amp, 2016/02/17 02:11:37]

Done.

+    HIDDEN,
+    SHOW_EMAIL,
+    SHOW_DOMAIN
+  };
+
   explicit MediaRouterWebUIMessageHandler(MediaRouterUI* media_router_ui);
   ~MediaRouterWebUIMessageHandler() override;
 
   // Methods to update the status displayed by the dialog.
   void UpdateSinks(const std::vector<MediaSinkWithCastModes>& sinks);
   void UpdateRoutes(const std::vector<MediaRoute>& routes,
                     const std::vector<MediaRoute::Id>& joinable_route_ids);
   void UpdateCastModes(const CastModeSet& cast_modes,
                        const std::string& source_host);
   void OnCreateRouteResponseReceived(const MediaSink::Id& sink_id,
@@ skipping 48 matching lines @@
   bool dialog_closing_;
 
   MediaRouterUI* media_router_ui_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRouterWebUIMessageHandler);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_