Check media permissions through RenderFrameHostDelegate.

extensions/browser/guest_view/web_view/web_view_guest.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/browser/guest_view/web_view/web_view_guest.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 773 matching lines @@
 
 void WebViewGuest::RequestMediaAccessPermission(
     content::WebContents* source,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   web_view_permission_helper_->RequestMediaAccessPermission(source,
                                                             request,
                                                             callback);
 }
 
+bool WebViewGuest::CheckMediaAccessPermission(content::WebContents* source,
+                                              const GURL& security_origin,
+                                              content::MediaStreamType type) {
+  return web_view_permission_helper_->CheckMediaAccessPermission(
+      source, security_origin, type);
+}
+
 void WebViewGuest::CanDownload(
     content::RenderViewHost* render_view_host,
     const GURL& url,
     const std::string& request_method,
     const base::Callback<void(bool)>& callback) {
   web_view_permission_helper_->CanDownload(render_view_host,
                                            url,
                                            request_method,
                                            callback);
 }
@@ skipping 289 matching lines @@
   WebViewGuest* guest =
       WebViewGuest::From(embedder_render_process_id(), new_window_instance_id);
   if (!guest)
     return;
 
   if (!allow)
     guest->Destroy();
 }
 
 }  // namespace extensions