Return Frame&, not Frame* from RenderView::frame()

Source/core/accessibility/AXObjectCache.cpp

 /*
  * Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 904 matching lines @@
     // In Chromium, AccessibilityObjects are not wrapped.
 }
 
 void AXObjectCache::postPlatformNotification(AccessibilityObject* obj, AXNotification notification)
 {
     if (obj && obj->isAccessibilityScrollbar() && notification == AXValueChanged) {
         // Send document value changed on scrollbar value changed notification.
         Scrollbar* scrollBar = static_cast<AccessibilityScrollbar*>(obj)->scrollbar();
         if (!scrollBar || !scrollBar->parent() || !scrollBar->parent()->isFrameView())
             return;
-        Document* document = toFrameView(scrollBar->parent())->frame()->document();
+        Document* document = toFrameView(scrollBar->parent())->frame().document();
         if (document != document->topDocument())
             return;
         obj = get(document->renderer());
     }
 
-    if (!obj || !obj->document() || !obj->documentFrameView() || !obj->documentFrameView()->frame() || !obj->documentFrameView()->frame()->page())
+    if (!obj || !obj->document() || !obj->documentFrameView() || !obj->documentFrameView()->frame().page())
         return;
 
-    ChromeClient& client = obj->documentFrameView()->frame()->page()->chrome().client();
+    ChromeClient& client = obj->documentFrameView()->frame().page()->chrome().client();
 
     if (notification == AXActiveDescendantChanged
         && obj->document()->focusedElement()
         && obj->node() == obj->document()->focusedElement()) {
         // Calling handleFocusedUIElementChanged will focus the new active
         // descendant and send the AXFocusedUIElementChanged notification.
         handleFocusedUIElementChanged(0, obj->document()->focusedElement());
     }
 
     client.postAccessibilityNotification(obj, notification);
@@ skipping 18 matching lines @@
 void AXObjectCache::handleScrolledToAnchor(const Node* anchorNode)
 {
     // The anchor node may not be accessible. Post the notification for the
     // first accessible object.
     postPlatformNotification(AccessibilityObject::firstAccessibleObjectFromNode(anchorNode), AXScrolledToAnchor);
 }
 
 } // namespace WebCore
 
 #endif // HAVE(ACCESSIBILITY)