Add early-injection capability to user scripts. I haven't yet

webkit/glue/webview_delegate.h

Index: webkit/glue/webview_delegate.h
diff --git a/webkit/glue/webview_delegate.h b/webkit/glue/webview_delegate.h
index 2fe23512fed258bf13d6b8f8d3e5527a6cccc2b1..892c25e7d18e39fc652f932839ac1803d6e4570f 100644
--- a/webkit/glue/webview_delegate.h
+++ b/webkit/glue/webview_delegate.h
@@ -198,6 +198,12 @@ class WebViewDelegate : virtual public WebWidgetDelegate {
   virtual void WindowObjectCleared(WebFrame* webframe) {
   }
 
+  // Notifies that the documentElement for the document in a webframe has been
+  // created. This is called before anything else is parsed or executed for the
+  // document.
+  virtual void DocumentElementAvailable(WebFrame* webframe) {
+  }
+
   // PolicyDelegate ----------------------------------------------------------
 
   // This method is called to notify the delegate, and let it modify a