Introduce setNeedsActiveStyleUpdate for adding/removing stylesheets.

third_party/WebKit/Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 365 matching lines @@
     bool isScriptExecutionReady() const { return isRenderingReady(); }
 
     // This is a DOM function.
     StyleSheetList* styleSheets();
 
     StyleEngine& styleEngine() { ASSERT(m_styleEngine.get()); return *m_styleEngine.get(); }
 
     bool gotoAnchorNeededAfterStylesheetsLoad() { return m_gotoAnchorNeededAfterStylesheetsLoad; }
     void setGotoAnchorNeededAfterStylesheetsLoad(bool b) { m_gotoAnchorNeededAfterStylesheetsLoad = b; }
 
-    // FIXME: Switch all callers of resolverChanged to these or better ones and then make them
-    // do something smarter.
-    void removedStyleSheet(StyleSheet*, StyleResolverUpdateMode = FullStyleUpdate);
-    void modifiedStyleSheet(StyleSheet*, StyleResolverUpdateMode = FullStyleUpdate);
-
     void scheduleUseShadowTreeUpdate(SVGUseElement&);
     void unscheduleUseShadowTreeUpdate(SVGUseElement&);
 
     // FIXME: SVG filters should change to store the filter on the ComputedStyle
     // instead of the LayoutObject so we can get rid of this hack.
     void scheduleSVGFilterLayerUpdateHack(Element&);
     void unscheduleSVGFilterLayerUpdateHack(Element&);
 
     void evaluateMediaQueryList();
 
@@ skipping 1046 matching lines @@
 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true);
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 CORE_EXPORT void showLiveDocumentInstances();
 #endif
 
 #endif // Document_h