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diff --git a/chromium/ash/system/tray/fixed_sized_scroll_view.h b/chromium/ash/system/tray/fixed_sized_scroll_view.h
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+++ b/chromium/ash/system/tray/fixed_sized_scroll_view.h
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+// Copyright 2013 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 ASH_SYSTEM_TRAY_FIXED_SIZED_SCROLL_VIEW_H_
+#define ASH_SYSTEM_TRAY_FIXED_SIZED_SCROLL_VIEW_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ui/views/controls/scroll_view.h"
+
+namespace ash {
+namespace internal {
+
+// A custom scroll-view that has a specified dimension.
+class FixedSizedScrollView : public views::ScrollView {
+ public:
+  FixedSizedScrollView();
+  virtual ~FixedSizedScrollView();
+
+  void SetContentsView(views::View* view);
+
+  // Change the fixed size of the view. Invalidates the layout (by calling
+  // PreferredSizeChanged()).
+  void SetFixedSize(const gfx::Size& size);
+
+  void set_fixed_size(const gfx::Size& size) { fixed_size_ = size; }
+
+  // Overridden from views::View:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void Layout() OVERRIDE;
+
+ protected:
+  // Overridden from views::View:
+  virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+
+ private:
+  gfx::Size fixed_size_;
+
+  DISALLOW_COPY_AND_ASSIGN(FixedSizedScrollView);
+};
+
+}  // namespace internal
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_TRAY_FIXED_SIZED_SCROLL_VIEW_H_