cc: Create a cc::ScrollbarThemePainter and an adapter class in compositor bindings.

webkit/compositor_bindings/web_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 "web_scrollbar_layer_impl.h"
 
 #include "cc/scrollbar_layer.h"
 #include "web_layer_impl.h"
+#include "web_to_ccscrollbar_theme_painter_adapter.h"
 
 using cc::ScrollbarLayer;
+using cc::ScrollbarThemePainter;
 
 namespace WebKit {
 
 WebScrollbarLayer* WebScrollbarLayer::create(WebScrollbar* scrollbar, WebScrollbarThemePainter painter, WebScrollbarThemeGeometry* geometry)
 {
     return new WebScrollbarLayerImpl(scrollbar, painter, geometry);
 }
 
 
 WebScrollbarLayerImpl::WebScrollbarLayerImpl(WebScrollbar* scrollbar, WebScrollbarThemePainter painter, WebScrollbarThemeGeometry* geometry)
-    : m_layer(new WebLayerImpl(ScrollbarLayer::create(make_scoped_ptr(scrollbar), painter, make_scoped_ptr(geometry), 0)))
+    : m_layer(new WebLayerImpl(ScrollbarLayer::create(
+        make_scoped_ptr(scrollbar),
+        WebToCCScrollbarThemePainterAdapter::Create(
+            painter).PassAs<ScrollbarThemePainter>(),
+        make_scoped_ptr(geometry),
+        0)))
 {
 }
 
 WebScrollbarLayerImpl::~WebScrollbarLayerImpl()
 {
 }
 
 WebLayer* WebScrollbarLayerImpl::layer()
 {
     return m_layer.get();
 }
 
 void WebScrollbarLayerImpl::setScrollLayer(WebLayer* layer)
 {
     int id = layer ? static_cast<WebLayerImpl*>(layer)->layer()->id() : 0;
     static_cast<ScrollbarLayer*>(m_layer->layer())->setScrollLayerId(id);
 }
 
 
 
 } // namespace WebKit