Move download shelf from per-tab to per-window

chrome/browser/gtk/download_shelf_gtk.h

 // 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_GTK_DOWNLOAD_SHELF_GTK_H_
 #define CHROME_BROWSER_GTK_DOWNLOAD_SHELF_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <vector>
 
+#include "base/gfx/native_widget_types.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/download/download_shelf.h"
 #include "chrome/common/owned_widget_gtk.h"
 
 class BaseDownloadItemModel;
+class Browser;
 class CustomDrawButton;
 class DownloadItemGtk;
 class SlideAnimatorGtk;
 
 class DownloadShelfGtk : public DownloadShelf {
  public:
-  explicit DownloadShelfGtk(TabContents* tab_contents);
+  explicit DownloadShelfGtk(Browser* browser, gfx::NativeView view);
 
   ~DownloadShelfGtk();
 
   // DownloadShelf implementation.
   virtual void AddDownload(BaseDownloadItemModel* download_model);
   virtual bool IsShowing() const;
   virtual bool IsClosing() const;
+  virtual void Show();
+  virtual void Close();
+
+  // Returns the current height of the shelf.
+  int GetHeight() const;
 
  private:
   // Remove |download_item| from the download shelf and delete it.
   void RemoveDownloadItem(DownloadItemGtk* download_item);
 
   // Get the leftmost non-download item widget on the shelf.
   GtkWidget* GetRightBoundingWidget() const;
 
   // Get the hbox download items ought to pack themselves into.
   GtkWidget* GetHBox() const;
 
   static void OnButtonClick(GtkWidget* button, DownloadShelfGtk* toolbar);
 
   // The top level widget of the shelf.
   scoped_ptr<SlideAnimatorGtk> slide_widget_;
 
   // |hbox_| holds the download items and buttons of the shelf.
-  GtkWidget* hbox_;
+  OwnedWidgetGtk hbox_;
 
   // |shelf_| is the second highest level widget. See the constructor
   // for an explanation of the widget layout.
   OwnedWidgetGtk shelf_;
 
   // This hbox holds the link text and download icon. It also holds the
   // distinction of being the leftmost non-download item widget on the shelf.
   GtkWidget* link_hbox_;
 
   // The 'x' that the user can press to hide the download shelf.
   scoped_ptr<CustomDrawButton> close_button_;
 
   // Keeps track of our current hide/show state.
   bool is_showing_;
 
   // The download items we have added to our shelf.
   std::vector<DownloadItemGtk*> download_items_;
 
   friend class DownloadItemGtk;
 };
 
 #endif  // CHROME_BROWSER_GTK_DOWNLOAD_SHELF_GTK_H_