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diff --git a/chromium/ash/wm/partial_screenshot_view.h b/chromium/ash/wm/partial_screenshot_view.h
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index 00000000000..8d799e3132b
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+++ b/chromium/ash/wm/partial_screenshot_view.h
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+// Copyright (c) 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.
+
+#ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
+#define ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
+
+#include <vector>
+
+#include "ash/ash_export.h"
+#include "base/compiler_specific.h"
+#include "base/gtest_prod_util.h"
+#include "ui/gfx/point.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace ash {
+class ScreenshotDelegate;
+
+// The view of taking partial screenshot, i.e.: drawing region
+// rectangles during drag, and changing the mouse cursor to indicate
+// the current mode.
+class ASH_EXPORT PartialScreenshotView : public views::WidgetDelegateView {
+ public:
+  // Starts the UI for taking partial screenshot; dragging to select a region.
+  // PartialScreenshotViews manage their own lifetime so caller must not delete
+  // the returned PartialScreenshotViews.
+  static std::vector<PartialScreenshotView*>
+      StartPartialScreenshot(ScreenshotDelegate* screenshot_delegate);
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicMouse);
+  FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicTouch);
+
+  class OverlayDelegate;
+
+  PartialScreenshotView(OverlayDelegate* overlay_delegate,
+                        ScreenshotDelegate* screenshot_delegate);
+  virtual ~PartialScreenshotView();
+
+  // Initializes partial screenshot UI widget for |root_window|.
+  void Init(aura::Window* root_window);
+
+  // Returns the currently selected region.
+  gfx::Rect GetScreenshotRect() const;
+
+  void OnSelectionStarted(const gfx::Point& position);
+  void OnSelectionChanged(const gfx::Point& position);
+  void OnSelectionFinished();
+
+  // Overridden from views::View:
+  virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
+  virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
+  virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
+  virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
+  virtual void OnMouseCaptureLost() OVERRIDE;
+  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
+
+  bool is_dragging_;
+  gfx::Point start_position_;
+  gfx::Point current_position_;
+
+  // The delegate to receive Cancel. No ownership.
+  OverlayDelegate* overlay_delegate_;
+
+  // ScreenshotDelegate to take the actual screenshot. No ownership.
+  ScreenshotDelegate* screenshot_delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(PartialScreenshotView);
+};
+
+}  // namespace ash
+
+#endif  // #ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_