Rename StyleSheetCollections to StyleEngine.

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/page/Page.h"
 
 #include "core/dom/ClientRectList.h"
 #include "core/dom/DocumentMarkerController.h"
 #include "core/dom/Event.h"
 #include "core/dom/EventNames.h"
-#include "core/dom/StyleSheetCollections.h"
+#include "core/dom/StyleEngine.h"
 #include "core/dom/VisitedLinkState.h"
 #include "core/editing/Caret.h"
 #include "core/history/BackForwardController.h"
 #include "core/history/HistoryItem.h"
 #include "core/inspector/InspectorController.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/ProgressTracker.h"
 #include "core/page/AutoscrollController.h"
 #include "core/page/Chrome.h"
@@ skipping 418 matching lines @@
     if (url.protocolIsData() && url.string().startsWith("data:text/css;charset=utf-8;base64,")) {
         m_didLoadUserStyleSheet = true;
 
         Vector<char> styleSheetAsUTF8;
         if (base64Decode(decodeURLEscapeSequences(url.string().substring(35)), styleSheetAsUTF8, Base64IgnoreWhitespace))
             m_userStyleSheet = String::fromUTF8(styleSheetAsUTF8.data(), styleSheetAsUTF8.size());
     }
 
     for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
         if (frame->document())
-            frame->document()->styleSheetCollections()->updatePageUserSheet();
+            frame->document()->styleEngine()->updatePageUserSheet();
     }
 }
 
 const String& Page::userStyleSheet() const
 {
     return m_userStyleSheet;
 }
 
 void Page::allVisitedStateChanged(PageGroup* group)
 {
@@ skipping 266 matching lines @@
     , dragClient(0)
     , inspectorClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore