Make to call WebContentsImpl::RenderViewCreated() when we create child window.

content/public/browser/notification_types.h

Index: content/public/browser/notification_types.h
===================================================================
--- content/public/browser/notification_types.h	(revision 256801)
+++ content/public/browser/notification_types.h	(working copy)
@@ -214,6 +214,10 @@
   // the RenderViewHost, and the details is a DomOperationNotificationDetails.
   NOTIFICATION_DOM_OPERATION_RESPONSE,
 
+  // A WebContents was created for a child window. The source is WebContents
+  // for parent window, and the details is a WebContents for new child window
+  NOTIFICATION_WEB_CONTENTS_CREATE_NEW_WINDOW,
+
   // Custom notifications used by the embedder should start from here.
   NOTIFICATION_CONTENT_END,
 };