CSP blocks style application in cloned nodes

Source/WebCore/dom/StyledElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2010 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
@@ skipping 139 matching lines @@
 {
     RefPtr<StylePropertySet>& inlineStyle = ensureUniqueElementData()->m_inlineStyle;
     if (!inlineStyle)
         inlineStyle = StylePropertySet::create(strictToCSSParserMode(isHTMLElement() && !document()->inQuirksMode()));
     else if (!inlineStyle->isMutable())
         inlineStyle = inlineStyle->copy();
     ASSERT(inlineStyle->isMutable());
     return static_cast<MutableStylePropertySet*>(inlineStyle.get());
 }
 
-void StyledElement::attributeChanged(const QualifiedName& name, const AtomicString& newValue)
+void StyledElement::attributeChanged(const QualifiedName& name, const AtomicString& newValue, AttributeModificationReason reason)
 {
     if (name == styleAttr)
-        styleAttributeChanged(newValue);
+        styleAttributeChanged(newValue, reason);
     else if (isPresentationAttribute(name)) {
         elementData()->m_presentationAttributeStyleIsDirty = true;
         setNeedsStyleRecalc(InlineStyleChange);
     }
 
-    Element::attributeChanged(name, newValue);
+    Element::attributeChanged(name, newValue, reason);
 }
 
 PropertySetCSSStyleDeclaration* StyledElement::inlineStyleCSSOMWrapper()
 {
     if (!inlineStyle() || !inlineStyle()->hasCSSOMWrapper())
         return 0;
     PropertySetCSSStyleDeclaration* cssomWrapper = ensureUniqueElementData()->m_inlineStyle->cssStyleDeclaration();
     ASSERT(cssomWrapper && cssomWrapper->parentElement() == this);
     return cssomWrapper;
 }
@@ skipping 10 matching lines @@
     // This makes wrapperless property sets immutable and so cacheable.
     if (inlineStyle && !inlineStyle->isMutable())
         inlineStyle.clear();
 
     if (!inlineStyle)
         inlineStyle = CSSParser::parseInlineStyleDeclaration(newStyleString, this);
     else
         inlineStyle->parseDeclaration(newStyleString, document()->elementSheet()->contents());
 }
 
-void StyledElement::styleAttributeChanged(const AtomicString& newStyleString)
+void StyledElement::styleAttributeChanged(const AtomicString& newStyleString, AttributeModificationReason modificationReason)
 {
     WTF::OrdinalNumber startLineNumber = WTF::OrdinalNumber::beforeFirst();
     if (document() && document()->scriptableDocumentParser() && !document()->isInDocumentWrite())
         startLineNumber = document()->scriptableDocumentParser()->lineNumber();
 
     if (newStyleString.isNull()) {
         if (PropertySetCSSStyleDeclaration* cssomWrapper = inlineStyleCSSOMWrapper())
             cssomWrapper->clearParentElement();
         ensureUniqueElementData()->m_inlineStyle.clear();
-    } else if (document()->contentSecurityPolicy()->allowInlineStyle(document()->url(), startLineNumber))
+    } else if (modificationReason == ModifiedByCloning || document()->contentSecurityPolicy()->allowInlineStyle(document()->url(), startLineNumber))
         setInlineStyleFromString(newStyleString);
 
     elementData()->m_styleAttributeIsDirty = false;
 
     setNeedsStyleRecalc(InlineStyleChange);
     InspectorInstrumentation::didInvalidateStyleAttr(document(), this);
 }
 
 void StyledElement::inlineStyleChanged()
 {
@@ skipping 151 matching lines @@
 {
     style->setProperty(propertyID, cssValuePool().createValue(value, unit));
 }
     
 void StyledElement::addPropertyToPresentationAttributeStyle(MutableStylePropertySet* style, CSSPropertyID propertyID, const String& value)
 {
     style->setProperty(propertyID, value, false, document()->elementSheet()->contents());
 }
 
 }