DevTools: [CSS] Add CSS.editRangeInStyleSheetText() to the protocol

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 3ffcb8b68b30d21357c6e196e3e5778bf81b172f..96793e7ff39b998652eed837e9ed4b4364d8ee57 100644
--- a/Source/core/inspector/InspectorStyleSheet.h
+++ b/Source/core/inspector/InspectorStyleSheet.h
@@ -169,6 +169,10 @@ public:
         virtual void willReparseStyleSheet() = 0;
         virtual void didReparseStyleSheet() = 0;
     };
+    struct EditRangeResult {
+        RefPtr<CSSStyleRule> rule;
+        RefPtr<CSSStyleDeclaration> style;
+    };
 
     static PassRefPtr<InspectorStyleSheet> create(InspectorPageAgent*, InspectorResourceAgent*, const String& id, PassRefPtr<CSSStyleSheet> pageStyleSheet, TypeBuilder::CSS::StyleSheetOrigin::Enum, const String& documentURL, Listener*);
     static String styleSheetURL(CSSStyleSheet* pageStyleSheet);
@@ -183,6 +187,7 @@ public:
     CSSStyleSheet* pageStyleSheet() const { return m_pageStyleSheet.get(); }
     virtual void reparseStyleSheet(const String&);
     virtual bool setText(const String&, ExceptionState&);
+    virtual bool editRange(const String&, unsigned startOffset, unsigned endOffset, EditRangeResult*, ExceptionState&);
     String ruleSelector(const InspectorCSSId&, ExceptionState&);
     bool setRuleSelector(const InspectorCSSId&, const String& selector, ExceptionState&);
     CSSStyleRule* addRule(const String& selector, ExceptionState&);
@@ -202,8 +207,14 @@ public:
 
     InspectorCSSId ruleId(CSSStyleRule*) const;
     InspectorCSSId styleId(CSSStyleDeclaration* style) const { return ruleOrStyleId(style); }
+    bool lineNumberAndColumnToOffset(unsigned lineNumber, unsigned columnNumber, unsigned* offset) const;
 
 protected:
+    enum PropertyScopeEditType {
+        EditExistingProperty = 0,
+        AppendNewProperty
+    };
+
     InspectorStyleSheet(InspectorPageAgent*, InspectorResourceAgent*, const String& id, PassRefPtr<CSSStyleSheet> pageStyleSheet, TypeBuilder::CSS::StyleSheetOrigin::Enum, const String& documentURL, Listener*);
 
     InspectorCSSId ruleOrStyleId(CSSStyleDeclaration* style) const;
@@ -218,6 +229,7 @@ protected:
     // Also accessed by friend class InspectorStyle.
     virtual bool setStyleText(CSSStyleDeclaration*, const String&);
     virtual PassOwnPtr<Vector<unsigned> > lineEndings() const;
+    bool handlePropertyScope(const CSSStyleSourceData* originalData, const CSSStyleSourceData* modifiedData, const unsigned ruleIndex, const PropertyScopeEditType, EditRangeResult*, ExceptionState&);
 
 private:
     friend class InspectorStyle;
@@ -234,6 +246,8 @@ private:
     String url() const;
     bool hasSourceURL() const;
     bool startsAtZero() const;
+    bool handleSelectorEditScope(const CSSRuleSourceData* originalData, const CSSRuleSourceData* modifiedData, const String& modifiedText, const unsigned ruleIndex, EditRangeResult*, ExceptionState&);
+    bool handleStyleSheetEditScope(const ParsedStyleSheet* originalData, const ParsedStyleSheet* modifiedData, EditRangeResult*, ExceptionState&);
 
     InspectorPageAgent* m_pageAgent;
     InspectorResourceAgent* m_resourceAgent;
@@ -254,6 +268,7 @@ public:
     void didModifyElementAttribute();
     virtual void reparseStyleSheet(const String&) OVERRIDE;
     virtual bool setText(const String&, ExceptionState&) OVERRIDE;
+    virtual bool editRange(const String&, unsigned startOffset, unsigned endOffset, EditRangeResult*, ExceptionState&);
     virtual bool getText(String* result) const OVERRIDE;
     virtual CSSStyleDeclaration* styleForId(const InspectorCSSId& id) const OVERRIDE { ASSERT_UNUSED(id, !id.ordinal()); return inlineStyle(); }
     virtual TypeBuilder::CSS::StyleSheetOrigin::Enum origin() const OVERRIDE { return TypeBuilder::CSS::StyleSheetOrigin::Regular; }