[Media Router] Set timeout for route creation.

chrome/browser/ui/webui/media_router/media_router_ui.h

Index: chrome/browser/ui/webui/media_router/media_router_ui.h
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.h b/chrome/browser/ui/webui/media_router/media_router_ui.h
index 2cf09cd26be3e3e725922d815f11da31b5cfc480..cc2eace6ea377d2fbc6e8ca9ebe8998b89d4d714 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.h
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.h
@@ -13,6 +13,7 @@
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/timer/timer.h"
 #include "chrome/browser/media/router/issue.h"
 #include "chrome/browser/media/router/media_source.h"
 #include "chrome/browser/media/router/presentation_service_delegate_impl.h"
@@ -175,6 +176,9 @@ class MediaRouterUI
 
   bool DoCreateRoute(const MediaSink::Id& sink_id, MediaCastMode cast_mode);
 
+  // Creates and sends an issue if route creation times out.
+  void RouteCreationTimeout();
+
   // Sets the source host name to be displayed in the UI.
   // Gets cast modes from |query_result_manager_| and forwards it to UI.
   // One of the Init* functions must have been called before.
@@ -232,6 +236,9 @@ class MediaRouterUI
   // Pointer to the MediaRouter for this instance's BrowserContext.
   MediaRouterMojoImpl* router_;
 
+  // Timer used to implement a timeout on a create route request.
+  base::OneShotTimer route_creation_timer_;
+
   // NOTE: Weak pointers must be invalidated before all other member variables.
   // Therefore |weak_factory_| must be placed at the end.
   base::WeakPtrFactory<MediaRouterUI> weak_factory_;