Allows inline style in User-Agent shadow trees under CSP

third_party/WebKit/Source/core/dom/Element.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)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 3612 matching lines @@
 
 void Element::styleAttributeChanged(const AtomicString& newStyleString, AttributeModificationReason modificationReason)
 {
     DCHECK(isStyledElement());
     WTF::OrdinalNumber startLineNumber = WTF::OrdinalNumber::beforeFirst();
     if (document().scriptableDocumentParser() && !document().isInDocumentWrite())
         startLineNumber = document().scriptableDocumentParser()->lineNumber();
 
     if (newStyleString.isNull()) {
         ensureUniqueElementData().m_inlineStyle.clear();
-    } else if (modificationReason == ModifiedByCloning || ContentSecurityPolicy::shouldBypassMainWorld(&document()) || document().contentSecurityPolicy()->allowInlineStyle(document().url(), String(), startLineNumber, newStyleString)) {
+    } else if (modificationReason == ModifiedByCloning || ContentSecurityPolicy::shouldBypassMainWorld(&document()) || (containingShadowRoot() && containingShadowRoot()->type() == ShadowRootType::UserAgent) || document().contentSecurityPolicy()->allowInlineStyle(document().url(), String(), startLineNumber, newStyleString)) {
         setInlineStyleFromString(newStyleString);
     }
 
     elementData()->m_styleAttributeIsDirty = false;
 
     setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::StyleSheetChange));
     InspectorInstrumentation::didInvalidateStyleAttr(this);
 }
 
 void Element::inlineStyleChanged()
@@ skipping 197 matching lines @@
 
 DEFINE_TRACE_WRAPPERS(Element)
 {
     if (hasRareData()) {
         visitor->traceWrappers(elementRareData());
     }
     ContainerNode::traceWrappers(visitor);
 }
 
 } // namespace blink