Check media permissions through RenderFrameHostDelegate.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 8cf5a0f673200bf3091efd98c5148bbd41fb4a4e..976c921f867aff24bb7be9226c1786d600a718d1 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -1779,6 +1779,14 @@ void WebContentsImpl::RequestMediaAccessPermission(
   }
 }
 
+bool WebContentsImpl::CheckMediaAccessPermission(const GURL& security_origin,
+                                                 MediaStreamType type) {
+  DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||
+         type == MEDIA_DEVICE_VIDEO_CAPTURE);
+  return delegate_ &&
+         delegate_->CheckMediaAccessPermission(this, security_origin, type);
+}
+
 SessionStorageNamespace* WebContentsImpl::GetSessionStorageNamespace(
     SiteInstance* instance) {
   return controller_.GetSessionStorageNamespace(instance);