Move Document global rule data to CSSGlobalRuleSet.

third_party/WebKit/Source/core/css/CSSDefaultStyleSheets.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 108 matching lines @@
 }
 
 StyleSheetContents*
 CSSDefaultStyleSheets::ensureTelevisionViewportStyleSheet() {
   if (!m_televisionViewportStyleSheet)
     m_televisionViewportStyleSheet =
         parseUASheet(loadResourceAsASCIIString("viewportTelevision.css"));
   return m_televisionViewportStyleSheet;
 }
 
-void CSSDefaultStyleSheets::ensureDefaultStyleSheetsForElement(
-    const Element& element,
-    bool& changedDefaultStyle) {
+bool CSSDefaultStyleSheets::ensureDefaultStyleSheetsForElement(
+    const Element& element) {
+  bool changedDefaultStyle = false;
   // FIXME: We should assert that the sheet only styles SVG elements.
   if (element.isSVGElement() && !m_svgStyleSheet) {
     m_svgStyleSheet = parseUASheet(loadResourceAsASCIIString("svg.css"));
     m_defaultStyle->addRulesFromSheet(svgStyleSheet(), screenEval());
     m_defaultPrintStyle->addRulesFromSheet(svgStyleSheet(), printEval());
     changedDefaultStyle = true;
   }
 
   // FIXME: We should assert that the sheet only styles MathML elements.
   if (element.namespaceURI() == MathMLNames::mathmlNamespaceURI &&
@@ skipping 12 matching lines @@
                         LayoutTheme::theme().extraMediaControlsStyleSheet();
     m_mediaControlsStyleSheet = parseUASheet(mediaRules);
     m_defaultStyle->addRulesFromSheet(mediaControlsStyleSheet(), screenEval());
     m_defaultPrintStyle->addRulesFromSheet(mediaControlsStyleSheet(),
                                            printEval());
     changedDefaultStyle = true;
   }
 
   ASSERT(!m_defaultStyle->features().hasIdsInSelectors());
   ASSERT(m_defaultStyle->features().siblingRules.isEmpty());
+  return changedDefaultStyle;
 }
 
 void CSSDefaultStyleSheets::ensureDefaultStyleSheetForFullscreen() {
   if (m_fullscreenStyleSheet)
     return;
 
   String fullscreenRules = loadResourceAsASCIIString("fullscreen.css") +
                            LayoutTheme::theme().extraFullscreenStyleSheet();
   m_fullscreenStyleSheet = parseUASheet(fullscreenRules);
   m_defaultStyle->addRulesFromSheet(fullscreenStyleSheet(), screenEval());
@@ skipping 10 matching lines @@
   visitor->trace(m_televisionViewportStyleSheet);
   visitor->trace(m_xhtmlMobileProfileStyleSheet);
   visitor->trace(m_quirksStyleSheet);
   visitor->trace(m_svgStyleSheet);
   visitor->trace(m_mathmlStyleSheet);
   visitor->trace(m_mediaControlsStyleSheet);
   visitor->trace(m_fullscreenStyleSheet);
 }
 
 }  // namespace blink