Check media permissions through RenderFrameHostDelegate.

chrome/browser/ui/browser.cc

 // Copyright 2012 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 1743 matching lines @@
   fullscreen_controller_->LostMouseLock();
 }
 
 void Browser::RequestMediaAccessPermission(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   ::RequestMediaAccessPermission(web_contents, profile_, request, callback);
 }
 
+bool Browser::CheckMediaAccessPermission(content::WebContents* web_contents,
+                                         const GURL& security_origin,
+                                         content::MediaStreamType type) {
+  return ::CheckMediaAccessPermission(web_contents, security_origin, type);
+}
+
 bool Browser::RequestPpapiBrokerPermission(
     WebContents* web_contents,
     const GURL& url,
     const base::FilePath& plugin_path,
     const base::Callback<void(bool)>& callback) {
   PepperBrokerInfoBarDelegate::Create(web_contents, url, plugin_path, callback);
   return true;
 }
 
 gfx::Size Browser::GetSizeForNewRenderView(WebContents* web_contents) const {
@@ skipping 698 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }