Rename FeatureObserver to UseCounter to make clear that all it stores are usage counts.

Source/WebCore/html/HTMLFormControlElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.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 12 matching lines @@
  */
 
 #include "config.h"
 #include "HTMLFormControlElement.h"
 
 #include "Attribute.h"
 #include "ElementShadow.h"
 #include "Event.h"
 #include "EventHandler.h"
 #include "EventNames.h"
-#include "FeatureObserver.h"
+#include "UseCounter.h"
 #include "Frame.h"
 #include "HTMLFieldSetElement.h"
 #include "HTMLFormElement.h"
 #include "HTMLInputElement.h"
 #include "HTMLLegendElement.h"
 #include "RenderBox.h"
 #include "RenderTheme.h"
 #include "ScriptEventListener.h"
 #include "ValidationMessage.h"
 #include "ValidityState.h"
@@ skipping 75 matching lines @@
 void HTMLFormControlElement::ancestorDisabledStateWasChanged()
 {
     m_ancestorDisabledState = AncestorDisabledStateUnknown;
     disabledAttributeChanged();
 }
 
 void HTMLFormControlElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == formAttr) {
         formAttributeChanged();
-        FeatureObserver::observe(document(), FeatureObserver::FormAttribute);
+        UseCounter::observe(document(), UseCounter::FormAttribute);
     } else if (name == disabledAttr) {
         bool oldDisabled = m_disabled;
         m_disabled = !value.isNull();
         if (oldDisabled != m_disabled)
             disabledAttributeChanged();
     } else if (name == readonlyAttr) {
         bool wasReadOnly = m_isReadOnly;
         m_isReadOnly = !value.isNull();
         if (wasReadOnly != m_isReadOnly) {
             setNeedsWillValidateCheck();
             setNeedsStyleRecalc();
             if (renderer() && renderer()->style()->hasAppearance())
                 renderer()->theme()->stateChanged(renderer(), ReadOnlyState);
         }
     } else if (name == requiredAttr) {
         bool wasRequired = m_isRequired;
         m_isRequired = !value.isNull();
         if (wasRequired != m_isRequired)
             requiredAttributeChanged();
-        FeatureObserver::observe(document(), FeatureObserver::RequiredAttribute);
+        UseCounter::observe(document(), UseCounter::RequiredAttribute);
     } else if (name == autofocusAttr) {
         HTMLElement::parseAttribute(name, value);
-        FeatureObserver::observe(document(), FeatureObserver::AutoFocusAttribute);
+        UseCounter::observe(document(), UseCounter::AutoFocusAttribute);
     } else
         HTMLElement::parseAttribute(name, value);
 }
 
 void HTMLFormControlElement::disabledAttributeChanged()
 {
     setNeedsWillValidateCheck();
     didAffectSelector(AffectedSelectorDisabled | AffectedSelectorEnabled);
     if (renderer() && renderer()->style()->hasAppearance())
         renderer()->theme()->stateChanged(renderer(), EnabledState);
@@ skipping 320 matching lines @@
 }
 
 void HTMLFormControlElement::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
     LabelableElement::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_validationMessage, "validationMessage");
 }
 
 } // namespace Webcore