[Media Router] 2nd take on fix route response callback lifetime in UI.

chrome/browser/ui/webui/media_router/media_router_dialog_controller.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_DIALOG_CONTROLLER_H_
 #define CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_DIALOG_CONTROLLER_H_
 
 #include "base/macros.h"
-#include "chrome/browser/media/router/create_session_request.h"
+#include "chrome/browser/media/router/create_presentation_session_request.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 namespace media_router {
 
 // An instance of this class is tied to a WebContents known as the initiator,
 // and is lazily created when a Media Router dialog needs to be shown.
 // The MediaRouterDialogController allows creating, querying, and removing a
 // Media Router dialog modal to the initiator WebContents.
 // This class is not thread safe and must be called on the UI thread.
@@ skipping 13 matching lines @@
   // If the dialog already exists, brings the dialog to the front.
   // Returns WebContents for the media router dialog.
   content::WebContents* ShowMediaRouterDialog();
 
   // Creates a Media Router modal dialog using the initiator and parameters
   // specified in |request|. If the dialog already exists, brings the dialog
   // to the front, but does not change the dialog with |request|.
   // Returns WebContents for the media router dialog if a dialog was created.
   // Otherwise returns nullptr and |request| is deleted.
   content::WebContents* ShowMediaRouterDialogForPresentation(
-      scoped_ptr<CreateSessionRequest> request);
+      scoped_ptr<CreatePresentationSessionRequest> request);
 
   // Returns the media router dialog WebContents.
   // Returns nullptr if there is no dialog.
   content::WebContents* GetMediaRouterDialog() const;
 
   // Closes the media router dialog. This will destroy the dialog WebContents.
   // It is an error to call this function if there is currently no dialog.
   void CloseMediaRouterDialog();
 
  private:
@@ skipping 21 matching lines @@
 
   content::WebContents* const initiator_;
 
   // True if the controller is waiting for a new media router dialog to be
   // created.
   bool media_router_dialog_pending_;
 
   // Data for dialogs created under a Presentation API context.
   // Passed from the caller of ShowMediaRouterDialogForPresentation(), and
   // passed to the MediaRouterUI when it is initialized.
-  scoped_ptr<CreateSessionRequest> presentation_request_;
+  scoped_ptr<CreatePresentationSessionRequest> presentation_request_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaRouterDialogController);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_DIALOG_CONTROLLER_H_