Move DragDownload() out of download_util.h

chrome/chrome_browser_ui.gypi

 # Copyright 2012 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 598 matching lines @@
         'browser/ui/cocoa/dock_icon.h',
         'browser/ui/cocoa/dock_icon.mm',
         'browser/ui/cocoa/download/background_theme.h',
         'browser/ui/cocoa/download/background_theme.mm',
         'browser/ui/cocoa/download/download_item_button.h',
         'browser/ui/cocoa/download/download_item_button.mm',
         'browser/ui/cocoa/download/download_item_cell.h',
         'browser/ui/cocoa/download/download_item_cell.mm',
         'browser/ui/cocoa/download/download_item_controller.h',
         'browser/ui/cocoa/download/download_item_controller.mm',
+        'browser/ui/cocoa/download/download_item_drag_mac.mm',
         'browser/ui/cocoa/download/download_item_mac.h',
         'browser/ui/cocoa/download/download_item_mac.mm',
         'browser/ui/cocoa/download/download_shelf_context_menu_controller.h',
         'browser/ui/cocoa/download/download_shelf_context_menu_controller.mm',
         'browser/ui/cocoa/download/download_shelf_controller.h',
         'browser/ui/cocoa/download/download_shelf_controller.mm',
         'browser/ui/cocoa/download/download_shelf_mac.h',
         'browser/ui/cocoa/download/download_shelf_mac.mm',
         'browser/ui/cocoa/download/download_shelf_view.h',
         'browser/ui/cocoa/download/download_shelf_view.mm',
@@ skipping 2481 matching lines @@
             'browser/ui/webui/local_discovery/local_discovery_ui.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui.h',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.h',
           ],
         }],
       ],
     },
   ],
 }