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

chrome/browser/ui/toolbar/media_router_action.h

Index: chrome/browser/ui/toolbar/media_router_action.h
diff --git a/chrome/browser/ui/toolbar/media_router_action.h b/chrome/browser/ui/toolbar/media_router_action.h
index 9540d2c3a024b3003c2d3d3668acd4e803744ceb..ffdc8dfcb98978da520e9ede06cc37d006e65dff 100644
--- a/chrome/browser/ui/toolbar/media_router_action.h
+++ b/chrome/browser/ui/toolbar/media_router_action.h
@@ -8,7 +8,7 @@
 #include "chrome/browser/ui/toolbar/toolbar_action_view_controller.h"
 
 namespace media_router {
-class MediaRouterDialogController;
+class MediaRouterDialogControllerImpl;
 }  // namespace media_router
 
 // The class for the Media Router component action that will be shown in
@@ -43,7 +43,8 @@ class MediaRouterAction : public ToolbarActionViewController {
   // Returns a reference to the MediaRouterDialogController associated with
   // |delegate_|'s current WebContents. Guaranteed to be non-null.
   // |delegate_| and its current WebContents must not be null.
-  media_router::MediaRouterDialogController* GetMediaRouterDialogController();
+  media_router::MediaRouterDialogControllerImpl*
+      GetMediaRouterDialogController();
 
   const std::string id_;
   const base::string16 name_;