Revert 171403

cc/scrollbar_layer_impl.cc

 // 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.
 
 #include "cc/scrollbar_layer_impl.h"
 
 #include "cc/quad_sink.h"
 #include "cc/scrollbar_animation_controller.h"
 #include "cc/texture_draw_quad.h"
 #include "ui/gfx/rect_conversions.h"
@@ skipping 107 matching lines @@
     // fore track quads. The back track texture contains (and displays) the buttons.
     if (!contentBoundsRect.IsEmpty()) {
         gfx::Rect quadRect(contentBoundsRect);
         gfx::Rect opaqueRect(contentsOpaque() ? quadRect : gfx::Rect());
         scoped_ptr<TextureDrawQuad> quad = TextureDrawQuad::Create();
         quad->SetNew(sharedQuadState, quadRect, opaqueRect, m_backTrackResourceId, premultipledAlpha, uvRect, flipped);
         quadSink.append(quad.PassAs<DrawQuad>(), appendQuadsData);
     }
 }
 
-void ScrollbarLayerImpl::didLoseOutputSurface()
+void ScrollbarLayerImpl::didLoseContext()
 {
     m_backTrackResourceId = 0;
     m_foreTrackResourceId = 0;
     m_thumbResourceId = 0;
 }
 
 bool ScrollbarLayerImpl::Scrollbar::isOverlay() const
 {
     return m_owner->m_isOverlayScrollbar;
 }
@@ skipping 72 matching lines @@
 {
     return m_owner->m_isCustomScrollbar;
 }
 
 const char* ScrollbarLayerImpl::layerTypeAsString() const
 {
     return "ScrollbarLayer";
 }
 
 }  // namespace cc