Update cc snapshot to WK r126941

cc/CCScrollbarLayerImpl.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CCScrollbarLayerImpl_h
 #define CCScrollbarLayerImpl_h
 
 #if USE(ACCELERATED_COMPOSITING)
 
 #include "CCLayerImpl.h"
@@ skipping 22 matching lines @@
     void setCurrentPos(float currentPos) { m_currentPos = currentPos; }
 
     int totalSize() const { return m_totalSize; }
     void setTotalSize(int totalSize) { m_totalSize = totalSize; }
 
     int maximum() const { return m_maximum; }
     void setMaximum(int maximum) { m_maximum = maximum; }
 
     WebKit::WebScrollbar::Orientation orientation() const { return m_orientation; }
 
-    virtual void appendQuads(CCQuadSink&, bool& hadMissingTiles) OVERRIDE;
+    virtual void appendQuads(CCQuadSink&, CCAppendQuadsData&) OVERRIDE;
 
     virtual void didLoseContext() OVERRIDE;
 
 protected:
     explicit CCScrollbarLayerImpl(int id);
 
 private:
     // nested class only to avoid namespace problem
     class CCScrollbar : public WebKit::WebScrollbar {
     public:
@@ skipping 46 matching lines @@
     bool m_isScrollViewScrollbar;
     bool m_enabled;
     bool m_isCustomScrollbar;
     bool m_isOverlayScrollbar;
 };
 
 }
 #endif // USE(ACCELERATED_COMPOSITING)
 
 #endif