Have Document::mediaQueryMatcher() / Document::selectorQueryCache() return references

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 607 matching lines @@
         m_scriptedAnimationController->clearDocumentPointer();
     m_scriptedAnimationController.clear();
 
     if (svgExtensions())
         accessSVGExtensions()->pauseAnimations();
 
     m_lifecyle.advanceTo(DocumentLifecycle::Disposed);
     lifecycleNotifier()->notifyDocumentWasDisposed();
 }
 
-SelectorQueryCache* Document::selectorQueryCache()
+SelectorQueryCache& Document::selectorQueryCache()
 {
     if (!m_selectorQueryCache)
         m_selectorQueryCache = adoptPtr(new SelectorQueryCache());
-    return m_selectorQueryCache.get();
+    return *m_selectorQueryCache;
 }
 
-MediaQueryMatcher* Document::mediaQueryMatcher()
+MediaQueryMatcher& Document::mediaQueryMatcher()
 {
     if (!m_mediaQueryMatcher)
         m_mediaQueryMatcher = MediaQueryMatcher::create(this);
-    return m_mediaQueryMatcher.get();
+    return *m_mediaQueryMatcher;
 }
 
 void Document::setCompatibilityMode(CompatibilityMode mode)
 {
     if (m_compatibilityModeLocked || mode == m_compatibilityMode)
         return;
     bool wasInQuirksMode = inQuirksMode();
     m_compatibilityMode = mode;
-    selectorQueryCache()->invalidate();
+    selectorQueryCache().invalidate();
     if (inQuirksMode() != wasInQuirksMode) {
         // All user stylesheets have to reparse using the different mode.
         m_styleEngine->clearPageUserSheet();
         m_styleEngine->invalidateInjectedStyleSheetCache();
     }
 }
 
 String Document::compatMode() const
 {
     return inQuirksMode() ? "BackCompat" : "CSS1Compat";
@@ skipping 1972 matching lines @@
         m_baseURL = m_baseElementURL;
     else if (!m_baseURLOverride.isEmpty())
         m_baseURL = m_baseURLOverride;
     else {
         // The documentURI attribute is read-only from JavaScript, but writable from Objective C, so we need to retain
         // this fallback behavior. We use a null base URL, since the documentURI attribute is an arbitrary string
         // and DOM 3 Core does not specify how it should be resolved.
         // FIXME: Now that we don't support Objective-C this can probably be removed.
         m_baseURL = KURL(ParsedURLString, documentURI());
     }
-    selectorQueryCache()->invalidate();
+    selectorQueryCache().invalidate();
 
     if (!m_baseURL.isValid())
         m_baseURL = KURL();
 
     if (m_elemSheet) {
         // Element sheet is silly. It never contains anything.
         ASSERT(!m_elemSheet->contents()->ruleCount());
         bool usesRemUnits = m_elemSheet->contents()->usesRemUnits();
         m_elemSheet = CSSStyleSheet::createInline(this, m_baseURL);
         // FIXME: So we are not really the parser. The right fix is to eliminate the element sheet completely.
@@ skipping 2698 matching lines @@
 void Document::modifiedStyleSheet(StyleSheet* sheet, RecalcStyleTime when, StyleResolverUpdateMode updateMode)
 {
     if (!isActive())
         return;
 
     styleEngine()->modifiedStyleSheet(sheet);
     styleResolverChanged(when, updateMode);
 }
 
 } // namespace WebCore