Gets button_dropdown compiling on linux.

views/views.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 219 matching lines @@
         ['OS=="linux"', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
           'sources!': [
             'accelerator.cc',
             'accessibility/accessible_wrapper.cc',
             'accessibility/view_accessibility.cc',
             'accessibility/view_accessibility_wrapper.cc',
             'controls/scrollbar/bitmap_scroll_bar.cc',
-            'controls/button/button_dropdown.cc',
             'controls/button/radio_button.cc',
             'controls/combo_box.cc',
             'controls/hwnd_view.cc',
             'controls/menu/chrome_menu.cc',
             'controls/message_box_view.cc',
             'controls/scroll_view.cc',
             'controls/table/group_table_view.cc',
             'controls/native_control.cc',
             'controls/scrollbar/native_scroll_bar.cc',
             'controls/button/radio_button.cc',
@@ skipping 23 matching lines @@
           ],
           'include_dirs': [
             # TODO(beng): move wtl to src/third_party
             '../chrome/third_party/wtl/include',
           ],
         }],
       ],
     },
   ],
 }