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

chrome/browser/ui/views/tab_contents/native_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_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_GTK_H_
 #pragma once
 
 #include "chrome/browser/ui/views/tab_contents/native_tab_contents_view.h"
 #include "views/widget/native_widget_gtk.h"
 
 class ConstrainedWindowGtk;
 class TabContents;
 class TabContentsDragSource;
+class WebDragBookmarkHandlerGtk;
 class WebDragDestGtk;
 
 class NativeTabContentsViewGtk : public views::NativeWidgetGtk,
                                  public NativeTabContentsView {
  public:
   explicit NativeTabContentsViewGtk(
       internal::NativeTabContentsViewDelegate* delegate);
   virtual ~NativeTabContentsViewGtk();
 
   // Unlike Windows, ConstrainedWindows need to collaborate with the
@@ skipping 41 matching lines @@
   // Handles drags from this TabContentsView.
   scoped_ptr<TabContentsDragSource> drag_source_;
 
   // The event for the last mouse down we handled. We need this for drags.
   GdkEventButton last_mouse_down_;
 
   // 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_;
+
   // Current size. See comment in NativeWidgetGtk as to why this is cached.
   gfx::Size size_;
 
   // Each individual UI for constrained dialogs currently displayed. The
   // objects in this vector are owned by the TabContents, not the view.
   std::vector<ConstrainedWindowGtk*> constrained_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeTabContentsViewGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_GTK_H_