Revert 171403

cc/scrollbar_layer_impl.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 CC_SCROLLBAR_LAYER_IMPL_H_
 #define CC_SCROLLBAR_LAYER_IMPL_H_
 
 #include "cc/cc_export.h"
 #include "cc/layer_impl.h"
 #include "cc/scrollbar_geometry_fixed_thumb.h"
@@ skipping 24 matching lines @@
     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(QuadSink&, AppendQuadsData&) OVERRIDE;
 
-    virtual void didLoseOutputSurface() OVERRIDE;
+    virtual void didLoseContext() OVERRIDE;
 
 protected:
     explicit ScrollbarLayerImpl(int id);
 
 private:
     // nested class only to avoid namespace problem
     class Scrollbar : public WebKit::WebScrollbar {
     public:
         explicit Scrollbar(ScrollbarLayerImpl* owner) : m_owner(owner) { }
 
@@ skipping 46 matching lines @@
 
     bool m_isScrollableAreaActive;
     bool m_isScrollViewScrollbar;
     bool m_enabled;
     bool m_isCustomScrollbar;
     bool m_isOverlayScrollbar;
 };
 
 }
 #endif  // CC_SCROLLBAR_LAYER_IMPL_H_