Page::chrome() should return a reference.

Source/core/html/HTMLAnchorElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 129 matching lines @@
     if (!isLink())
         return HTMLElement::isKeyboardFocusable(event);
 
     if (!isFocusable())
         return false;
     
     Page* page = document()->page();
     if (!page)
         return false;
 
-    if (!page->chrome()->client()->tabsToLinks())
+    if (!page->chrome().client()->tabsToLinks())
         return false;
 
     if (isInCanvasSubtree())
         return true;
 
     return hasNonEmptyBoundingBox();
 }
 
 static void appendServerMapMousePosition(StringBuilder& url, Event* event)
 {
@@ skipping 586 matching lines @@
         HistogramSupport::histogramCustomCounts("MouseEventPrefetch.TapDownDuration_Click", tapDownDuration * 1000, 0, 10000, 100);
     }
 
     int flags = (m_hadTapUnconfirmed ? 2 : 0) | (capturedTapDown ? 1 : 0);
     HistogramSupport::histogramEnumeration("MouseEventPrefetch.PreTapEventsFollowedByClick", flags, 4);
 
     reset();
 }
 
 }