DevTools: remove unused parts of the CSS instrumentation.

Source/core/inspector/InspectorCSSAgent.h

 /*
  * Copyright (C) 2010, 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 95 matching lines @@
     DECLARE_VIRTUAL_TRACE();
 
     bool forcePseudoState(Element*, CSSSelector::PseudoType);
     void discardAgent() override;
     void didCommitLoadForLocalFrame(LocalFrame*) override;
     void restore() override;
     void flushPendingProtocolNotifications() override;
     void disable(ErrorString*) override;
     void reset();
     void mediaQueryResultChanged();
-    void willMutateRules();
-    void didMutateRules(CSSStyleSheet*);
-    void willMutateStyle();
-    void didMutateStyle(CSSStyleDeclaration*, bool);
 
     void activeStyleSheetsUpdated(Document*);
     void documentDetached(Document*);
 
     void addEditedStyleSheet(const String& url, const String& content);
     bool getEditedStyleSheet(const String& url, String* content);
 
     void addEditedStyleElement(int backendNodeId, const String& content);
     bool getEditedStyleElement(int backendNodeId, String* content);
 
@@ skipping 42 matching lines @@
     void setActiveStyleSheets(Document*, const WillBeHeapVector<RawPtrWillBeMember<CSSStyleSheet> >&, StyleSheetsUpdateType);
 
     void collectPlatformFontsForLayoutObject(LayoutObject*, HashCountedSet<String>*);
 
     InspectorStyleSheet* bindStyleSheet(CSSStyleSheet*);
     String unbindStyleSheet(InspectorStyleSheet*);
     InspectorStyleSheet* viaInspectorStyleSheet(Document*, bool createIfAbsent);
     InspectorStyleSheet* assertInspectorStyleSheetForId(ErrorString*, const String&);
     InspectorStyleSheetBase* assertStyleSheetForId(ErrorString*, const String&);
     TypeBuilder::CSS::StyleSheetOrigin::Enum detectOrigin(CSSStyleSheet* pageStyleSheet, Document* ownerDocument);
-    bool styleSheetEditInProgress() const { return m_styleSheetsPendingMutation || m_styleDeclarationPendingMutation || m_isSettingStyleSheetText; }
 
     PassRefPtr<TypeBuilder::CSS::CSSRule> buildObjectForRule(CSSStyleRule*);
     PassRefPtr<TypeBuilder::Array<TypeBuilder::CSS::RuleMatch> > buildArrayForMatchedRuleList(CSSRuleList*, Element*, PseudoId);
     PassRefPtr<TypeBuilder::CSS::CSSStyle> buildObjectForAttributesStyle(Element*);
 
     // InspectorDOMAgent::DOMListener implementation
     virtual void didRemoveDocument(Document*) override;
     virtual void didRemoveDOMNode(Node*) override;
     virtual void didModifyDOMAttr(Element*) override;
 
@@ skipping 17 matching lines @@
 
     NodeToInspectorStyleSheet m_nodeToInspectorStyleSheet;
     WillBeHeapHashMap<RefPtrWillBeMember<Document>, RefPtrWillBeMember<InspectorStyleSheet> > m_documentToViaInspectorStyleSheet; // "via inspector" stylesheets
     NodeIdToForcedPseudoState m_nodeIdToForcedPseudoState;
 
     RefPtrWillBeMember<CSSStyleSheet> m_inspectorUserAgentStyleSheet;
     HashMap<String, String> m_editedStyleSheets;
     HashMap<int, String> m_editedStyleElements;
 
     int m_lastStyleSheetId;
-    int m_styleSheetsPendingMutation;
-    bool m_styleDeclarationPendingMutation;
     bool m_creatingViaInspectorStyleSheet;
     bool m_isSettingStyleSheetText;
 
     friend class InspectorResourceContentLoaderCallback;
     friend class StyleSheetBinder;
 };
 
 
 } // namespace blink
 
 #endif // !defined(InspectorCSSAgent_h)