Check media permissions through RenderFrameHostDelegate.

chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc

Index: chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
diff --git a/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc b/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
index 3279b883352a0d4b662adb35c548fe158a5d6385..efb3b49f37ed28617e3ef9ee79857462e322e14c 100644
--- a/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
+++ b/chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.cc
@@ -138,7 +138,20 @@ void ChromeWebViewPermissionHelperDelegate::RequestMediaAccessPermission(
       false /* allowed_by_default */);
 }
 
- void ChromeWebViewPermissionHelperDelegate::OnMediaPermissionResponse(
+bool ChromeWebViewPermissionHelperDelegate::CheckMediaAccessPermission(
+    content::WebContents* source,
+    const GURL& security_origin,
+    content::MediaStreamType type) {
+  // TODO - BEFORE COMMIT: I guess we need to call web_view_permission_helper()

[sky, 2014/09/12 16:19:14]

You need to resolve this.

[Henrik Grunell, 2014/09/15 11:33:47]

Done.

+  // and check/request permission? Not sure exactly what it does.
+  return web_view_guest()
+      ->embedder_web_contents()
+      ->GetDelegate()
+      ->CheckMediaAccessPermission(
+          web_view_guest()->embedder_web_contents(), security_origin, type);
+}
+
+void ChromeWebViewPermissionHelperDelegate::OnMediaPermissionResponse(
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback,
     bool allow,