Remove some now unused fullscreen plumbing.

content/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2011 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.
 
 #include "content/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1291 matching lines @@
     *url = GURL();
   }
 }
 
 void RenderViewHost::SetAltErrorPageURL(const GURL& url) {
   Send(new ViewMsg_SetAltErrorPageURL(routing_id(), url));
 }
 
 void RenderViewHost::ExitFullscreen() {
   RejectMouseLockOrUnlockIfNecessary();
-
-  Send(new ViewMsg_ExitFullscreen(routing_id()));
 }
 
 void RenderViewHost::UpdateWebkitPreferences(const WebPreferences& prefs) {
   Send(new ViewMsg_UpdateWebPreferences(routing_id(), prefs));
 }
 
 void RenderViewHost::ClearFocusedNode() {
   Send(new ViewMsg_ClearFocusedNode(routing_id()));
 }
 
@@ skipping 197 matching lines @@
 
 void RenderViewHost::OnWebUISend(const GURL& source_url,
                                  const std::string& name,
                                  const base::ListValue& args) {
   delegate_->WebUISend(this, source_url, name, args);
 }
 
 void RenderViewHost::ClearPowerSaveBlockers() {
   STLDeleteValues(&power_save_blockers_);
 }