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diff --git a/Source/WebKit/chromium/src/WebScrollbarThemeClientImpl.h b/Source/WebKit/chromium/src/WebScrollbarThemeClientImpl.h
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+++ b/Source/WebKit/chromium/src/WebScrollbarThemeClientImpl.h
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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.
+ */
+
+#ifndef WebScrollbarThemeClientImpl_h
+#define WebScrollbarThemeClientImpl_h
+
+#include "ScrollbarThemeClient.h"
+#include <public/WebScrollbar.h>
+#include <wtf/Noncopyable.h>
+
+namespace WebCore {
+class ScrollView;
+}
+
+namespace WebKit {
+
+// Adapts a WebScrollbar to the ScrollbarThemeClient interface
+class WebScrollbarThemeClientImpl : public WebCore::ScrollbarThemeClient {
+    WTF_MAKE_NONCOPYABLE(WebScrollbarThemeClientImpl);
+public:
+    // Caller must retain ownership of this pointer and ensure that its lifetime
+    // exceeds this instance.
+    WebScrollbarThemeClientImpl(WebScrollbar*);
+
+    // Implement WebCore::ScrollbarThemeClient interface
+    virtual int x() const OVERRIDE;
+    virtual int y() const OVERRIDE;
+    virtual int width() const OVERRIDE;
+    virtual int height() const OVERRIDE;
+    virtual WebCore::IntSize size() const OVERRIDE;
+    virtual WebCore::IntPoint location() const OVERRIDE;
+    virtual WebCore::ScrollView* parent() const OVERRIDE;
+    virtual WebCore::ScrollView* root() const OVERRIDE;
+    virtual void setFrameRect(const WebCore::IntRect&) OVERRIDE;
+    virtual WebCore::IntRect frameRect() const OVERRIDE;
+    virtual void invalidate() OVERRIDE;
+    virtual void invalidateRect(const WebCore::IntRect&) OVERRIDE;
+    virtual WebCore::ScrollbarOverlayStyle scrollbarOverlayStyle() const OVERRIDE;
+    virtual void getTickmarks(Vector<WebCore::IntRect>&) const OVERRIDE;
+    virtual bool isScrollableAreaActive() const OVERRIDE;
+    virtual bool isScrollViewScrollbar() const OVERRIDE;
+    virtual WebCore::IntPoint convertFromContainingWindow(const WebCore::IntPoint&) OVERRIDE;
+    virtual bool isCustomScrollbar() const OVERRIDE;
+    virtual WebCore::ScrollbarOrientation orientation() const OVERRIDE;
+    virtual int value() const OVERRIDE;
+    virtual float currentPos() const OVERRIDE;
+    virtual int visibleSize() const OVERRIDE;
+    virtual int totalSize() const OVERRIDE;
+    virtual int maximum() const OVERRIDE;
+    virtual WebCore::ScrollbarControlSize controlSize() const OVERRIDE;
+    virtual int lineStep() const OVERRIDE;
+    virtual int pageStep() const OVERRIDE;
+    virtual WebCore::ScrollbarPart pressedPart() const OVERRIDE;
+    virtual WebCore::ScrollbarPart hoveredPart() const OVERRIDE;
+    virtual void styleChanged() OVERRIDE;
+    virtual bool enabled() const OVERRIDE;
+    virtual void setEnabled(bool) OVERRIDE;
+    virtual bool isOverlayScrollbar() const OVERRIDE;
+
+private:
+    WebKit::WebScrollbar* m_scrollbar;
+};
+
+}
+
+#endif // WebScrollbarThemeClientImpl_h