content: Split web_drag_dest_gtk.cc into chrome/ and content/ parts.

chrome/browser/tab_contents/tab_contents_view_gtk.h

 // 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 CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/tab_contents/render_view_host_delegate_helper.h"
 #include "chrome/browser/ui/gtk/focus_store_gtk.h"
 #include "content/browser/tab_contents/tab_contents_view.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/gtk/owned_widget_gtk.h"
 
 class ConstrainedWindowGtk;
 class RenderViewContextMenuGtk;
 class SadTabGtk;
 class TabContentsDragSource;
+class WebDragBookmarkHandlerGtk;
 class WebDragDestGtk;
 
 class TabContentsViewGtk : public TabContentsView,
                            public NotificationObserver {
  public:
   // The corresponding TabContents is passed in the constructor, and manages our
   // lifetime. This doesn't need to be the case, but is this way currently
   // because that's what was easiest when they were split.
   explicit TabContentsViewGtk(TabContents* tab_contents);
   virtual ~TabContentsViewGtk();
@@ skipping 116 matching lines @@
   FocusStoreGtk focus_store_;
 
   // The UI for the constrained dialog currently displayed. This is owned by
   // TabContents, not the view.
   ConstrainedWindowGtk* constrained_window_;
 
   // The helper object that handles drag destination related interactions with
   // GTK.
   scoped_ptr<WebDragDestGtk> drag_dest_;
 
+  // The chrome specific delegate that receives events from WebDragDestGtk.
+  scoped_ptr<WebDragBookmarkHandlerGtk> bookmark_handler_gtk_;
+
   // Object responsible for handling drags from the page for us.
   scoped_ptr<TabContentsDragSource> drag_source_;
 
   // The size we want the tab contents view to be.  We keep this in a separate
   // variable because resizing in GTK+ is async.
   gfx::Size requested_size_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewGtk);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_