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

chrome/browser/media/router/create_presentation_session_request.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_ROUTER_CREATE_SESSION_REQUEST_H_
-#define CHROME_BROWSER_MEDIA_ROUTER_CREATE_SESSION_REQUEST_H_
+#ifndef CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_
 
 #include <string>
 
 #include "chrome/browser/media/router/media_route.h"
 #include "chrome/browser/media/router/media_source.h"
 #include "content/public/browser/presentation_service_delegate.h"
 #include "url/gurl.h"
 
 namespace content {
 struct PresentationError;
 struct PresentationSessionInfo;
 }  // namespace content
 
 namespace media_router {
 
 // Holds parameters for creating a presentation session.
 // A request object is created by presentation_service_delegate_impl when it
 // gets create-session request. The object is then passed to and owned by the
 // MediaRouterUI. |success_cb| will be invoked when create-session
 // succeeds, or |error_cb| will be invoked when create-session fails or
 // the UI closes.
-class CreateSessionRequest {
+class CreatePresentationSessionRequest {
  public:
   using PresentationSessionSuccessCallback =
       base::Callback<void(const content::PresentationSessionInfo&,
                           const MediaRoute::Id&)>;
   using PresentationSessionErrorCallback =
       content::PresentationServiceDelegate::PresentationSessionErrorCallback;
 
   // |presentation_url| must be valid.
-  CreateSessionRequest(const std::string& presentation_url,
-                       const std::string& presentation_id,
-                       const GURL& frame_url,
-                       const PresentationSessionSuccessCallback& success_cb,
-                       const PresentationSessionErrorCallback& error_cb);
-  ~CreateSessionRequest();
+  CreatePresentationSessionRequest(
+      const std::string& presentation_url,
+      const std::string& presentation_id,
+      const GURL& frame_url,
+      const PresentationSessionSuccessCallback& success_cb,
+      const PresentationSessionErrorCallback& error_cb);
+  ~CreatePresentationSessionRequest();
 
   // Gets the MediaSource derived from this instance's presentation URL.
   const MediaSource& GetMediaSource() const { return media_source_; }
 
   const GURL& frame_url() const { return frame_url_; }
   const content::PresentationSessionInfo& presentation_info() const {
     return presentation_info_;
   }
 
   // Invokes |success_cb_| or |error_cb_| with the given arguments.
   // These functions can only be invoked once per instance. Further invocations
   // are no-op.
   void MaybeInvokeSuccessCallback(const MediaRoute::Id& route_id);
   void MaybeInvokeErrorCallback(const content::PresentationError& error);
 
  private:
   content::PresentationSessionInfo presentation_info_;
   MediaSource media_source_;
   GURL frame_url_;
   PresentationSessionSuccessCallback success_cb_;
   PresentationSessionErrorCallback error_cb_;
   bool cb_invoked_;
 
-  DISALLOW_COPY_AND_ASSIGN(CreateSessionRequest);
+  DISALLOW_COPY_AND_ASSIGN(CreatePresentationSessionRequest);
 };
 
 }  // namespace media_router
 
-#endif  // CHROME_BROWSER_MEDIA_ROUTER_CREATE_SESSION_REQUEST_H_
+#endif  // CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_SESSION_REQUEST_H_