[Media Router] Move main frame check for SetDefaultPresentationUrls.

chrome/browser/media/router/presentation_service_delegate_impl.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_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 210 matching lines @@
   // Sets the default presentation request for the owning WebContents and
   // notifies observers of changes.
   void SetDefaultPresentationRequest(
       const PresentationRequest& default_presentation_request);
 
   // Clears the default presentation request for the owning WebContents and
   // notifies observers of changes. Also resets
   // |default_presentation_started_callback_|.
   void ClearDefaultPresentationRequest();
 
-  // Returns |true| if the given frame is the main frame of the associated
-  // WebContents.
-  // NOTE: This method will be removed in an upcoming patch.
-  bool IsMainFrame(const RenderFrameHostId& render_frame_host_id) const;
-
   // Returns the ID of the route corresponding to |presentation_id| in the given
   // frame, or empty if no such route exist.
   MediaRoute::Id GetRouteId(const RenderFrameHostId& render_frame_host_id,
                             const std::string& presentation_id) const;
 
 #if !defined(OS_ANDROID)
   // Returns true if auto-join requests should be cancelled for |origin|.
   bool ShouldCancelAutoJoinForOrigin(const url::Origin& origin) const;
 #endif
 
@@ skipping 24 matching lines @@
   PresentationServiceDelegateObservers observers_;
 
   base::WeakPtrFactory<PresentationServiceDelegateImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PresentationServiceDelegateImpl);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_