Fix for empty form autofill popups

webkit/glue/webview_impl.cc

 /*
 * Copyright 2007 Google Inc. All Rights Reserved.
 *
 * Portions Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 *
 * ***** BEGIN LICENSE BLOCK *****
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
@@ skipping 1749 matching lines @@
   HitTestResult result = HitTestResultForWindowPos(IntPoint(x, y));
   return result.innerNonSharedNode();
 }
 
 void WebViewImpl::HideAutofillPopup() {
   HideAutoCompletePopup();
 }
 
 void WebViewImpl::RefreshAutofillPopup() {
   DCHECK(autocomplete_popup_showing_);
+
+  // Hide the popup if it has become empty.
+  if (autocomplete_popup_client_->listSize() == 0) {
+    HideAutoCompletePopup();
+    return;
+  }
+
   IntRect old_bounds = autocomplete_popup_->boundsRect();
   autocomplete_popup_->refresh();
   IntRect new_bounds = autocomplete_popup_->boundsRect();
   // Let's resize the backing window if necessary.
   if (old_bounds != new_bounds) {
     WebWidgetImpl* web_widget =
         static_cast<WebWidgetImpl*>(autocomplete_popup_->client());
     web_widget->delegate()->SetWindowRect(
         web_widget, webkit_glue::FromIntRect(new_bounds));
   }
@@ skipping 10 matching lines @@
 
   return document->focusedNode();
 }
 
 HitTestResult WebViewImpl::HitTestResultForWindowPos(const IntPoint& pos) {
   IntPoint doc_point(
       page_->mainFrame()->view()->windowToContents(pos));
   return page_->mainFrame()->eventHandler()->
       hitTestResultAtPoint(doc_point, false);
 }