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diff --git a/Source/WebKit/chromium/src/WebScrollbarThemePainter.cpp b/Source/WebKit/chromium/src/WebScrollbarThemePainter.cpp
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+++ b/Source/WebKit/chromium/src/WebScrollbarThemePainter.cpp
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+/*
+ * Copyright (C) 2012 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <public/WebScrollbarThemePainter.h>
+
+#include "PlatformContextSkia.h"
+#include "Scrollbar.h"
+#include "ScrollbarThemeComposite.h"
+#include <public/WebRect.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+void WebScrollbarThemePainter::assign(const WebScrollbarThemePainter& painter)
+{
+    // This is a pointer to a static object, so no ownership transferral.
+    m_theme = painter.m_theme;
+    m_scrollbar = painter.m_scrollbar;
+}
+
+void WebScrollbarThemePainter::paintScrollbarBackground(WebCanvas* canvas, const WebRect& rect)
+{
+    SkRect clip = SkRect::MakeXYWH(rect.x, rect.y, rect.width, rect.height);
+    canvas->clipRect(clip);
+
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintScrollbarBackground(&context, m_scrollbar);
+}
+
+void WebScrollbarThemePainter::paintTrackBackground(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintTrackBackground(&context, m_scrollbar, IntRect(rect));
+}
+
+void WebScrollbarThemePainter::paintBackTrackPart(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), WebCore::BackTrackPart);
+}
+
+void WebScrollbarThemePainter::paintForwardTrackPart(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), WebCore::ForwardTrackPart);
+}
+
+void WebScrollbarThemePainter::paintBackButtonStart(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::BackButtonStartPart);
+}
+
+void WebScrollbarThemePainter::paintBackButtonEnd(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::BackButtonEndPart);
+}
+
+void WebScrollbarThemePainter::paintForwardButtonStart(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::ForwardButtonStartPart);
+}
+
+void WebScrollbarThemePainter::paintForwardButtonEnd(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::ForwardButtonEndPart);
+}
+
+void WebScrollbarThemePainter::paintTickmarks(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintTickmarks(&context, m_scrollbar, IntRect(rect));
+}
+
+void WebScrollbarThemePainter::paintThumb(WebCanvas* canvas, const WebRect& rect)
+{
+    PlatformContextSkia platformContext(canvas);
+    platformContext.setDrawingToImageBuffer(true);
+    GraphicsContext context(&platformContext);
+    m_theme->paintThumb(&context, m_scrollbar, IntRect(rect));
+}
+
+WebScrollbarThemePainter::WebScrollbarThemePainter(WebCore::ScrollbarThemeComposite* theme, WebCore::Scrollbar* scrollbar)
+    : m_theme(theme)
+    , m_scrollbar(scrollbar)
+{
+}
+
+} // namespace WebKit