Rename 'UseCounter::observe' to 'UseCounter::count'.

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 2497 matching lines @@
                 const AtomicString& value = element->fastGetAttribute(hrefAttr);
                 if (!value.isNull())
                     href = &value;
             }
             if (!target) {
                 const AtomicString& value = element->fastGetAttribute(targetAttr);
                 if (!value.isNull())
                     target = &value;
             }
             if (contentSecurityPolicy()->isActive())
-                UseCounter::observe(this, UseCounter::ContentSecurityPolicyWithBaseElement);
+                UseCounter::count(this, UseCounter::ContentSecurityPolicyWithBaseElement);
         }
     }
 
     // FIXME: Since this doesn't share code with completeURL it may not handle encodings correctly.
     KURL baseElementURL;
     if (href) {
         String strippedHref = stripLeadingAndTrailingHTMLSpaces(*href);
         if (!strippedHref.isEmpty())
             baseElementURL = KURL(url(), strippedHref);
     }
@@ skipping 3204 matching lines @@
         return;
 
     Vector<RefPtr<Element> > associatedFormControls;
     copyToVector(m_associatedFormControls, associatedFormControls);
 
     frame()->page()->chrome()->client()->didAssociateFormControls(associatedFormControls);
     m_associatedFormControls.clear();
 }
 
 } // namespace WebCore