Move from UnusedSlotXX to REMOVEDOldFeature in UseCounter.h

Source/core/frame/UseCounter.h

 /*
  * Copyright (C) 2012 Google, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 52 matching lines @@
         LegacyNotifications,
         MultipartMainResource,
         PrefixedIndexedDB,
         WorkerStart,
         SharedWorkerStart,
         LegacyWebAudio,
         WebAudioStart,
         PrefixedContentSecurityPolicy,
         UnprefixedIndexedDB,
         OpenWebDatabase,
-        UnusedSlot01, // Prior to 7/2013, we used this slot for LegacyHTMLNotifications.
+        REMOVEDLegacyHTMLNotifications,
         LegacyTextNotifications,
         UnprefixedRequestAnimationFrame,
         PrefixedRequestAnimationFrame,
         ContentSecurityPolicy,
         ContentSecurityPolicyReportOnly,
         PrefixedContentSecurityPolicyReportOnly,
         PrefixedTransitionEndEvent,
         UnprefixedTransitionEndEvent,
         PrefixedAndUnprefixedTransitionEndEvent,
         AutoFocusAttribute,
-        UnusedSlot02, // Prior to 4/2013, we used this slot for AutoSaveAttribute.
+        REMOVEDAutoSaveAttribute,
         DataListElement,
         FormAttribute,
         IncrementalAttribute,
         InputTypeColor,
         InputTypeDate,
         InputTypeDateTime,
         InputTypeDateTimeFallback,
         InputTypeDateTimeLocal,
         InputTypeEmail,
         InputTypeMonth,
@@ skipping 11 matching lines @@
         PatternAttribute,
         PlaceholderAttribute,
         PrecisionAttribute,
         PrefixedDirectoryAttribute,
         PrefixedSpeechAttribute,
         RequiredAttribute,
         ResultsAttribute,
         StepAttribute,
         PageVisits,
         HTMLMarqueeElement,
-        UnusedSlot03, // Removed, was tracking overflow: -webkit-marquee.
+        REMOVEDCSSOverflowMarquee,
         Reflection,
-        CursorVisibility, // Removed, was -webkit-cursor-visibility.
+        REMOVEDCursorVisibility,
         StorageInfo,
         XFrameOptions,
         XFrameOptionsSameOrigin,
         XFrameOptionsSameOriginWithBadAncestorChain,
         DeprecatedFlexboxWebContent,
         DeprecatedFlexboxChrome,
         DeprecatedFlexboxChromeExtension,
-        UnusedSlot04,
+        REMOVEDSVGTRefElement,
         UnprefixedPerformanceTimeline,
         PrefixedPerformanceTimeline,
         UnprefixedUserTiming,
         PrefixedUserTiming,
         WindowEvent,
         ContentSecurityPolicyWithBaseElement,
         PrefixedMediaAddKey,
         PrefixedMediaGenerateKeyRequest,
-        UnusedSlot10, // Removed, was AudioBufferSourceNode.looping.
+        REMOVEDWebAudioLooping,
         DocumentClear,
         PrefixedTransitionMediaFeature,
         SVGFontElement,
         XMLDocument,
         XSLProcessingInstruction,
         XSLTProcessor,
         SVGSwitchElement,
-        UnusedSlot05, // Removed, was document.webkitRegister
+        REMOVEDPrefixedDocumentRegister,
         HTMLShadowElementOlderShadowRoot,
         DocumentAll,
         FormElement,
         DemotedFormElement,
         CaptureAttributeAsEnum,
         ShadowDOMPrefixedPseudo,
         ShadowDOMPrefixedCreateShadowRoot,
         ShadowDOMPrefixedShadowRoot,
         SVGAnimationElement,
         KeyboardEventKeyLocation,
@@ skipping 19 matching lines @@
         DocumentCreateAttribute, // Removed from DOM4.
         DocumentCreateAttributeNS, // Removed from DOM4.
         DocumentCreateCDATASection, // Removed from DOM4.
         DocumentInputEncoding, // Removed from DOM4.
         DocumentXMLEncoding, // Removed from DOM4.
         DocumentXMLStandalone, // Removed from DOM4.
         DocumentXMLVersion, // Removed from DOM4.
         NodeIsSameNode, // Removed from DOM4.
         NodeIsSupported, // Removed from DOM4.
         NodeNamespaceURI, // Removed from DOM4.
-        UnusedSlot06, // Removed, was Node.prefix.
+        REMOVEDNodePrefix,
         NodeLocalName, // Removed from DOM4.
         NavigatorProductSub,
         NavigatorVendor,
         NavigatorVendorSub,
         FileError,
         DocumentCharset, // Documented as IE extensions, from KHTML days.
         PrefixedAnimationEndEvent,
         UnprefixedAnimationEndEvent,
         PrefixedAndUnprefixedAnimationEndEvent,
         PrefixedAnimationStartEvent,
@@ skipping 16 matching lines @@
         DocumentAllTags,
         DocumentAllLegacyCall,
         HTMLAppletElementLegacyCall,
         HTMLEmbedElementLegacyCall,
         HTMLObjectElementLegacyCall,
         BeforeLoadEvent,
         GetMatchedCSSRules,
         SVGFontInCSS,
         ScrollTopBodyNotQuirksMode,
         ScrollLeftBodyNotQuirksMode,
-        UnusedSlot07, // Removed, was Attr.isId.
-        UnusedSlot08, // Removed, was Attr.ownerElement.
-        UnusedSlot09, // Removed, was Attr.prefix setter.
+        REMOVEDAttributeIsId,
+        REMOVEDAttributeOwnerElement,
+        REMOVEDAttributeSetPrefix,
         AttributeSpecified, // Removed in DOM4.
         BeforeLoadEventInIsolatedWorld,
         PrefixedAudioDecodedByteCount,
         PrefixedVideoDecodedByteCount,
         PrefixedVideoSupportsFullscreen,
         PrefixedVideoDisplayingFullscreen,
         PrefixedVideoEnterFullscreen,
         PrefixedVideoExitFullscreen,
         PrefixedVideoEnterFullScreen,
         PrefixedVideoExitFullScreen,
@@ skipping 48 matching lines @@
         CSSStyleSheetAddRule,
         CSSStyleSheetRemoveRule,
         InitMessageEvent,
         PrefixedInitMessageEvent,
         ElementSetPrefix, // Element.prefix is readonly in DOM4.
         CSSStyleDeclarationGetPropertyCSSValue,
         SVGElementGetPresentationAttribute,
         AttrUsedAsNodeParameter,
         AttrUsedAsNodeReceiver,
         // Add new features immediately above this line. Don't change assigned
-        // numbers of each items, and don't reuse unused slots.
+        // numbers of any item, and don't reuse removed slots.
         NumberOfFeatures, // This enum value must be last.
     };
 
     // "count" sets the bit for this feature to 1. Repeated calls are ignored.
     static void count(const Document&, Feature);
     static void count(const ExecutionContext*, Feature);
     void count(CSSParserContext, CSSPropertyID);
     void count(Feature);
 
     // "countDeprecation" sets the bit for this feature to 1, and sends a deprecation
@@ skipping 33 matching lines @@
 
     void updateMeasurements();
 
     OwnPtr<BitVector> m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace WebCore
 
 #endif // UseCounter_h