Check media permissions through RenderFrameHostDelegate.

extensions/shell/browser/shell_app_window.cc

 // Copyright 2014 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 "extensions/shell/browser/shell_app_window.h"
 
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/view_type_utils.h"
@@ skipping 52 matching lines @@
 
 void ShellAppWindow::RequestMediaAccessPermission(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   // Allow access to the microphone and/or camera.
   media_capture_util::GrantMediaStreamRequest(
       web_contents, request, callback, extension_);
 }
 
+bool ShellAppWindow::CheckMediaAccessPermission(
+    content::WebContents* web_contents,
+    const GURL& security_origin,
+    content::MediaStreamType type) {
+  media_capture_util::VerifyMediaAccessPermission(type, extension_);
+  return true;
+}
+
 bool ShellAppWindow::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ShellAppWindow, message)
   IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 content::WebContents* ShellAppWindow::GetAssociatedWebContents() const {
   return web_contents_.get();
 }
 
 void ShellAppWindow::OnRequest(const ExtensionHostMsg_Request_Params& params) {
   extension_function_dispatcher_->Dispatch(params,
                                            web_contents_->GetRenderViewHost());
 }
 
 }  // namespace extensions