Enable webview and browser-plugin as custom elements in Chrome Apps

chrome/renderer/extensions/dispatcher.h

Index: chrome/renderer/extensions/dispatcher.h
diff --git a/chrome/renderer/extensions/dispatcher.h b/chrome/renderer/extensions/dispatcher.h
index b43067d0d16b0a83f4205010dc13729f8a22728d..70cba432040e4f77e1c790efbdd74e391fc9371c 100644
--- a/chrome/renderer/extensions/dispatcher.h
+++ b/chrome/renderer/extensions/dispatcher.h
@@ -200,6 +200,9 @@ class Dispatcher : public content::RenderProcessObserver {
       const Extension* extension,
       const URLPatternSet& origins);
 
+  // Enable custom element whitelist in Apps.
+  void EnableCustomElementWhiteList();
+
   // Adds or removes bindings for every context belonging to |extension_id|, or
   // or all contexts if |extension_id| is empty.
   void AddOrRemoveBindings(const std::string& extension_id);