CSS: remove dead code from InspectorStyleSheet

Source/core/inspector/InspectorStyleSheet.h

Index: Source/core/inspector/InspectorStyleSheet.h
diff --git a/Source/core/inspector/InspectorStyleSheet.h b/Source/core/inspector/InspectorStyleSheet.h
index 65d439b10ef79a5e558b129aa69b079c214aff23..a43f7fc4a95385854f64634cd2ade6dbf4aa31e8 100644
--- a/Source/core/inspector/InspectorStyleSheet.h
+++ b/Source/core/inspector/InspectorStyleSheet.h
@@ -149,8 +149,6 @@ private:
     PassRefPtr<CSSRuleSourceData> extractSourceData() const;
     bool applyStyleText(const String&);
     String shorthandValue(const String& shorthandProperty) const;
-    String shorthandPriority(const String& shorthandProperty) const;
-    Vector<String> longhandProperties(const String& shorthandProperty) const;
     NewLineAndWhitespace& newLineAndWhitespaceDelimiters() const;
     inline Document* ownerDocument() const;
 
@@ -230,7 +228,6 @@ private:
     bool ensureSourceData();
     void ensureFlatRules() const;
     bool styleSheetTextWithChangedStyle(CSSStyleDeclaration*, const String& newStyleText, String* result);
-    void revalidateStyle(CSSStyleDeclaration*);
     bool originalStyleSheetText(String* result) const;
     bool resourceStyleSheetText(String* result) const;
     bool inlineStyleSheetText(String* result) const;
@@ -246,7 +243,6 @@ private:
     RefPtr<CSSStyleSheet> m_pageStyleSheet;
     TypeBuilder::CSS::StyleSheetOrigin::Enum m_origin;
     String m_documentURL;
-    bool m_isRevalidating;
     ParsedStyleSheet* m_parsedStyleSheet;
     mutable CSSRuleVector m_flatRules;
     Listener* m_listener;