Check media permissions through RenderFrameHostDelegate.

chrome/browser/chromeos/login/ui/webui_login_view.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 "chrome/browser/chromeos/login/ui/webui_login_view.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 434 matching lines @@
 }
 
 void WebUILoginView::RequestMediaAccessPermission(
     WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   if (MediaStreamInfoBarDelegate::Create(web_contents, request, callback))
     NOTREACHED() << "Media stream not allowed for WebUI";
 }
 
+bool WebUILoginView::CheckMediaAccessPermission(
+    content::WebContents* web_contents,
+    const GURL& security_origin,
+    content::MediaStreamType type) {
+  return MediaCaptureDevicesDispatcher::GetInstance()
+      ->CheckMediaAccessPermission(web_contents, security_origin, type, NULL);
+}
+
 bool WebUILoginView::PreHandleGestureEvent(
     content::WebContents* source,
     const blink::WebGestureEvent& event) {
   // Disable pinch zooming.
   return event.type == blink::WebGestureEvent::GesturePinchBegin ||
       event.type == blink::WebGestureEvent::GesturePinchUpdate ||
       event.type == blink::WebGestureEvent::GesturePinchEnd;
 }
 
 void WebUILoginView::DidFailProvisionalLoad(
@@ skipping 28 matching lines @@
   webui_visible_ = true;
 }
 
 void WebUILoginView::ReturnFocus(bool reverse) {
   // Return the focus to the web contents.
   webui_login_->web_contents()->FocusThroughTabTraversal(reverse);
   GetWidget()->Activate();
 }
 
 }  // namespace chromeos