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diff --git a/views/widget/tooltip_manager_views.h b/views/widget/tooltip_manager_views.h
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+++ b/views/widget/tooltip_manager_views.h
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+// Copyright (c) 2011 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 VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_
+#define VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_
+#pragma once
+
+#include "base/message_loop.h"
+#include "base/message_pump_x.h"
+#include "base/timer.h"
+#include "views/controls/label.h"
+#include "views/widget/native_widget.h"
+#include "views/widget/tooltip_manager.h"
+#include "views/widget/widget_delegate.h"
+#include "views/view.h"
+
+typedef union _GdkEvent GdkEvent;
+typedef union _XEvent XEvent;
+
+namespace views {
+
+namespace internal {
+class RootView;
+}
+
+class Widget;
+
+// TooltipManager implementation for Views.
+class TooltipManagerViews : public TooltipManager,
+                            public MessageLoopForUI::Observer {
+ public:
+  explicit TooltipManagerViews(internal::RootView* root_view);
+  virtual ~TooltipManagerViews();
+
+  // TooltipManager.
+  virtual void UpdateTooltip() OVERRIDE;
+  virtual void TooltipTextChanged(View* view) OVERRIDE;
+  virtual void ShowKeyboardTooltip(View* view) OVERRIDE;
+  virtual void HideKeyboardTooltip() OVERRIDE;
+
+  // MessageLoopForUI::Observer
+  virtual base::MessagePumpObserver::EventStatus WillProcessXEvent(
+      XEvent* xevent) OVERRIDE;
+
+ private:
+  void TooltipTimerFired();
+  View* GetViewForTooltip(int x, int y, bool for_keyboard);
+
+  // Updates the tooltip if required (if there is any change in the tooltip
+  // text or the view.
+  void UpdateIfRequired(int x, int y, bool for_keyboard);
+
+  // Updates the tooltip. Gets the tooltip text from tooltip_view_ and displays
+  // it at the current mouse position.
+  void Update();
+
+  // Adjusts the bounds given by the arguments to fit inside the parent view
+  // and applies the adjusted bounds to the tooltip_label_.
+  void SetTooltipBounds(gfx::Point mouse_pos, int tooltip_width,
+                        int tooltip_height);
+
+  // Creates a widget of type TYPE_TOOLTIP
+  Widget* CreateTooltip();
+
+  scoped_ptr<Widget> tooltip_widget_;
+  internal::RootView* root_view_;
+  View* tooltip_view_;
+  std::wstring tooltip_text_;
+  Label tooltip_label_;
+
+  gfx::Point curr_mouse_pos_;
+  base::RepeatingTimer<TooltipManagerViews> tooltip_timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(TooltipManagerViews);
+};
+
+}  // namespace views
+
+#endif // VIEWS_WIDGET_TOOLTIP_MANAGER_VIEWS_H_