Merge 97724 - r97638 caused 3 printing crashes

Source/WebCore/css/CSSStyleSelector.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 2156 matching lines @@
             applyProperty(current.id(), current.value());
     }
 }
 
 template <bool applyFirst>
 void CSSStyleSelector::applyDeclarations(bool isImportant, int startIndex, int endIndex)
 {
     if (startIndex == -1)
         return;
 
-    if (m_element->isLink()) {
+    if (m_element && m_element->isLink()) {
         for (int i = startIndex; i <= endIndex; ++i) {
             CSSMutableStyleDeclaration* styleDeclaration = m_matchedDecls[i].styleDeclaration;
             unsigned linkMatchType = m_matchedDecls[i].linkMatchType;
             // FIXME: It would be nicer to pass these as arguments but that requires changes in many places.
             m_applyPropertyToRegularStyle = linkMatchType & SelectorChecker::MatchLink;
             m_applyPropertyToVisitedLinkStyle = linkMatchType & SelectorChecker::MatchVisited;
 
             applyDeclaration<applyFirst>(styleDeclaration, isImportant);        
         }
         m_applyPropertyToRegularStyle = true;
@@ skipping 3313 matching lines @@
             }
             default:
                 ASSERT_NOT_REACHED();
         }
     }
 
     m_pendingImageProperties.clear();
 }
 
 } // namespace WebCore