[Presentation API] Change ListenForSessionMessages API to client-style.

chrome/browser/media/router/create_presentation_session_request.cc

Index: chrome/browser/media/router/create_presentation_session_request.cc
diff --git a/chrome/browser/media/router/create_presentation_session_request.cc b/chrome/browser/media/router/create_presentation_session_request.cc
index 49993895b37a6977215d8bd321d31096fc9bb130..265b80d297a5180c7cf4304683b5b17b0abcb0ba 100644
--- a/chrome/browser/media/router/create_presentation_session_request.cc
+++ b/chrome/browser/media/router/create_presentation_session_request.cc
@@ -38,10 +38,7 @@ void CreatePresentationSessionRequest::MaybeInvokeSuccessCallback(
     const MediaRoute::Id& route_id) {
   if (!cb_invoked_) {
     // Overwrite presentation ID.

[mark a. foltz, 2015/08/04 23:47:02]

Update comment?

[imcheng, 2015/08/05 21:38:35]

I partially reverted the code here since we still had to override the
presentation id. We should clean up the presentation id here and elsewhere in a
separate patch.

-    success_cb_.Run(content::PresentationSessionInfo(
-                        presentation_info_.presentation_url,
-                        GetPresentationIdAndUrl(route_id).first),
-                    route_id);
+    success_cb_.Run(presentation_info_, route_id);
     cb_invoked_ = true;
   }
 }