Check media permissions through RenderFrameHostDelegate.

content/public/browser/web_contents_delegate.cc

 // Copyright (c) 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 "content/public/browser/web_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 151 matching lines @@
 
 void WebContentsDelegate::RequestMediaAccessPermission(
     WebContents* web_contents,
     const MediaStreamRequest& request,
     const MediaResponseCallback& callback) {
   callback.Run(MediaStreamDevices(),
                MEDIA_DEVICE_INVALID_STATE,
                scoped_ptr<MediaStreamUI>());
 }
 
+bool WebContentsDelegate::CheckMediaAccessPermission(
+    WebContents* web_contents,
+    const GURL& security_origin,
+    MediaStreamType type) {
+  DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||

[perkj_chrome, 2014/09/15 12:06:25]

Why are we ever getting here? Should this be NOTREACHED()?

[Henrik Grunell, 2014/09/15 13:45:17]

Not all classes that implement WebContentsDelegate have to implement this
function, but are happy with this default one.

+         type == MEDIA_DEVICE_VIDEO_CAPTURE);
+  return false;
+}
+
 bool WebContentsDelegate::RequestPpapiBrokerPermission(
     WebContents* web_contents,
     const GURL& url,
     const base::FilePath& plugin_path,
     const base::Callback<void(bool)>& callback) {
   return false;
 }
 
 WebContentsDelegate::~WebContentsDelegate() {
   while (!attached_contents_.empty()) {
@@ skipping 16 matching lines @@
 gfx::Size WebContentsDelegate::GetSizeForNewRenderView(
    WebContents* web_contents) const {
   return gfx::Size();
 }
 
 bool WebContentsDelegate::IsNeverVisible(WebContents* web_contents) {
   return false;
 }
 
 }  // namespace content