Introduce setNeedsActiveStyleUpdate for adding/removing stylesheets.

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

 /*
  * 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, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 5744 matching lines @@
 
     frame()->page()->chromeClient().didAssociateFormControls(associatedFormControls, frame());
     m_associatedFormControls.clear();
 }
 
 float Document::devicePixelRatio() const
 {
     return m_frame ? m_frame->devicePixelRatio() : 1.0;
 }
 
-void Document::removedStyleSheet(StyleSheet* sheet, StyleResolverUpdateMode updateMode)
-{
-    // If we're in document teardown, then we don't need this notification of our sheet's removal.
-    // resolverChanged() is needed even when the document is inactive so that imported documents
-    // (which are inactive) notify the change to the master document.
-    if (isActive())
-        styleEngine().modifiedStyleSheet(sheet);
-    styleEngine().resolverChanged(updateMode);
-}
-
-void Document::modifiedStyleSheet(StyleSheet* sheet, StyleResolverUpdateMode updateMode)
-{
-    // If we're in document teardown, then we don't need this notification of our sheet's removal.
-    // resolverChanged() is needed even when the document is inactive so that imported documents
-    // (which are inactive) notify the change to the master document.
-    if (isActive())
-        styleEngine().modifiedStyleSheet(sheet);
-    styleEngine().resolverChanged(updateMode);
-}
-
 TextAutosizer* Document::textAutosizer()
 {
     if (!m_textAutosizer)
         m_textAutosizer = TextAutosizer::create(this);
     return m_textAutosizer.get();
 }
 
 void Document::setAutofocusElement(Element* element)
 {
     if (!element) {
@@ skipping 239 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     Document::WeakDocumentSet& set = Document::liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().getString().utf8().data());
 }
 #endif