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diff --git a/chrome/browser/views/bookmark_menu_button.h b/chrome/browser/views/bookmark_menu_button.h
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+++ b/chrome/browser/views/bookmark_menu_button.h
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+// Copyright (c) 2009 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 CHROME_BROWSER_VIEWS_BOOKMARK_MENU_BUTTON_H_
+#define CHROME_BROWSER_VIEWS_BOOKMARK_MENU_BUTTON_H_
+
+#include "base/timer.h"
+#include "chrome/browser/bookmarks/bookmark_drag_data.h"
+#include "chrome/browser/bookmarks/bookmark_menu_controller.h"
+#include "chrome/views/controls/button/menu_button.h"
+#include "chrome/views/controls/menu/view_menu_delegate.h"
+
+class BookmarkModel;
+class Browser;
+
+// BookmarkMenuButton is the button on the toolbar that when clicked shows
+// all bookmarks in a menu. Additionally users can drag bookmarks over the
+// button to have the menu appear.
+
+class BookmarkMenuButton : public views::MenuButton,
+                           public BookmarkMenuController::Observer,
+                           public views::ViewMenuDelegate {
+ public:
+  explicit BookmarkMenuButton(Browser* browser);
+  virtual ~BookmarkMenuButton();
+
+  // View drop methods.
+  virtual bool CanDrop(const OSExchangeData& data);
+  virtual int OnDragUpdated(const views::DropTargetEvent& event);
+  virtual void OnDragExited();
+  virtual int OnPerformDrop(const views::DropTargetEvent& event);
+
+  // BookmarkMenuController::Observer.
+  virtual void BookmarkMenuDeleted(BookmarkMenuController* controller);
+
+  // ViewMenuDelegate.
+  virtual void RunMenu(views::View* source,
+                       const CPoint& pt,
+                       gfx::NativeView hwnd);
+
+ private:
+  // Shows the menu.
+  void RunMenu(views::View* source,
+               const CPoint& pt,
+               gfx::NativeView hwnd,
+               bool for_drop);
+
+  // Returns the bookmark model.
+  BookmarkModel* GetBookmarkModel();
+
+  // Starts the timer for showing the drop menu if it isn't running.
+  void StartShowFolderDropMenuTimer();
+
+  // Stops the timer for showing the drop menu.
+  void StopShowFolderDropMenuTimer();
+
+  // Shows the drop menu.
+  void ShowDropMenu();
+
+  // Browser used to determine profile for showing bookmarks from.
+  Browser* browser_;
+
+  // Contents of current drag.
+  BookmarkDragData drag_data_;
+
+  // Menu shown during drag and drop.
+  BookmarkMenuController* bookmark_drop_menu_;
+
+  // Drop operation for current drop.
+  int drop_operation_;
+
+  // Timer used for showing the drop menu.
+  base::OneShotTimer<BookmarkMenuButton> show_drop_menu_timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(BookmarkMenuButton);
+};
+
+#endif  // CHROME_BROWSER_VIEWS_BOOKMARK_MENU_BUTTON_H_