[Presentation API] Remove references to presentation sessions.

chrome/browser/media/router/media_route.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_MEDIA_ROUTE_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTE_H_
 
 #include <string>
 
-#include "base/containers/small_map.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/media/router/media_sink.h"
 #include "chrome/browser/media/router/media_source.h"
-#include "content/public/common/presentation_session.h"
 
 namespace media_router {
 
 // MediaRoute objects contain the status and metadata of a routing
 // operation. The fields are immutable and reflect the route status
 // only at the time of object creation. Updated route statuses must
 // be retrieved as new MediaRoute objects from the Media Router.
 //
 // TODO(mfoltz): Convert to a simple struct and remove uncommon parameters from
 // the ctor.
@@ skipping 97 matching lines @@
   bool is_incognito_ = false;
 
   // |true| if the presentation associated with this route is an offscreen
   // presentation.
   bool is_offscreen_presentation_ = false;
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTE_H_