Allow cross-origin cssRules access to CORS-fetched stylesheet.

Source/core/css/CSSStyleSheet.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 18 matching lines @@
 
 namespace blink {
 
 class CSSImportRule;
 class CSSRule;
 class CSSRuleList;
 class CSSStyleSheet;
 class Document;
 class ExceptionState;
 class MediaQuerySet;
+class SecurityOrigin;
 class StyleSheetContents;
 
 enum StyleSheetUpdateType {
     PartialRuleUpdate,
     EntireStyleSheetUpdate
 };
 
 class CSSStyleSheet final : public StyleSheet {
     DEFINE_WRAPPERTYPEINFO();
 public:
@@ skipping 31 matching lines @@
 
     virtual CSSRule* ownerRule() const override { return m_ownerRule; }
     virtual KURL baseURL() const override;
     virtual bool isLoading() const override;
 
     void clearOwnerRule() { m_ownerRule = nullptr; }
     Document* ownerDocument() const;
     MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
     void setMediaQueries(PassRefPtrWillBeRawPtr<MediaQuerySet>);
     void setTitle(const String& title) { m_title = title; }
+    // Set by LinkStyle iff CORS-enabled fetch of stylesheet succeeded from this origin.
+    void setAllowRuleAccessFromOrigin(PassRefPtr<SecurityOrigin> allowedOrigin);
 
     class RuleMutationScope {
         WTF_MAKE_NONCOPYABLE(RuleMutationScope);
         STACK_ALLOCATED();
     public:
         explicit RuleMutationScope(CSSStyleSheet*);
         explicit RuleMutationScope(CSSRule*);
         ~RuleMutationScope();
 
     private:
@@ skipping 29 matching lines @@
     bool canAccessRules() const;
 
     void setLoadCompleted(bool);
 
     RefPtrWillBeMember<StyleSheetContents> m_contents;
     bool m_isInlineStylesheet;
     bool m_isDisabled;
     String m_title;
     RefPtrWillBeMember<MediaQuerySet> m_mediaQueries;
 
+    RefPtr<SecurityOrigin> m_allowRuleAccessFromOrigin;
+
     RawPtrWillBeMember<Node> m_ownerNode;
     RawPtrWillBeMember<CSSRule> m_ownerRule;
 
     TextPosition m_startPosition;
     bool m_loadCompleted;
     mutable RefPtrWillBeMember<MediaList> m_mediaCSSOMWrapper;
     mutable WillBeHeapVector<RefPtrWillBeMember<CSSRule>> m_childRuleCSSOMWrappers;
     mutable OwnPtrWillBeMember<CSSRuleList> m_ruleListCSSOMWrapper;
 };
 
@@ skipping 15 matching lines @@
 {
     if (m_styleSheet)
         m_styleSheet->didMutateRules();
 }
 
 DEFINE_TYPE_CASTS(CSSStyleSheet, StyleSheet, sheet, sheet->isCSSStyleSheet(), sheet.isCSSStyleSheet());
 
 } // namespace blink
 
 #endif