Move preferred stylesheet set out of active sheet update.

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 64 matching lines @@
 bool StyleSheetCandidate::isEnabledViaScript() const
 {
     return isHTMLLink() && toHTMLLinkElement(node()).isEnabledViaScript();
 }
 
 bool StyleSheetCandidate::isEnabledAndLoading() const
 {
     return isHTMLLink() && !toHTMLLinkElement(node()).isDisabled() && toHTMLLinkElement(node()).styleSheetIsLoading();
 }
 
-bool StyleSheetCandidate::hasPreferrableName() const
-{
-    DCHECK(isEnabledAndLoading() || sheet());
-    return !isEnabledViaScript() && !title().isEmpty() && !isAlternate();
-}
-
 bool StyleSheetCandidate::canBeActivated(const String& currentPreferrableName) const
 {
     StyleSheet* sheet = this->sheet();
     if (!sheet || sheet->disabled() || !sheet->isCSSStyleSheet())
         return false;
 
     if (sheet->ownerNode() && sheet->ownerNode()->isInShadowTree())
         return true;
 
     const AtomicString& title = this->title();
@@ skipping 38 matching lines @@
         return toSVGStyleElement(node()).sheet();
     case Pi:
         return toProcessingInstruction(node()).sheet();
     }
 
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 } // namespace blink