Wires keeping the launcher up to date with the browser.

ui/ui.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     'toolkit_views2': 0,  # ui/views/ is an experimental framework on Windows.
   },
   'target_defaults': {
@@ skipping 460 matching lines @@
             ],
           },
         },{  # OS!="win"
           'sources!': [
             'base/dragdrop/drag_source.cc',
             'base/dragdrop/drag_source.h',
             'base/dragdrop/drag_drop_types.h',
             'base/dragdrop/drop_target.cc',
             'base/dragdrop/drop_target.h',
             'base/dragdrop/os_exchange_data.cc',
-            'base/view_prop.cc',
-            'base/view_prop.h',
             'gfx/native_theme_win.cc',
             'gfx/native_theme_win.h',
           ],
           'sources/': [
             ['exclude', '^base/win/*'],
           ],
         }],
         ['OS=="mac"', {
           'sources!': [
             'base/touch/touch_factory.cc',
@@ skipping 41 matching lines @@
             'gfx/native_theme_gtk.h',
           ]
         }, {  # chromeos != 1
           'sources!': [
             'gfx/native_theme_chromeos.cc',
             'gfx/native_theme_chromeos.h',
           ]
         }],
         ['toolkit_views==0', {
           'sources!': [
+            'base/view_prop.cc',
+            'base/view_prop.h',
             'gfx/render_text.cc',
             'gfx/render_text.h',
             'gfx/render_text_linux.cc',
             'gfx/render_text_linux.h',
             'gfx/render_text_win.cc',
             'gfx/render_text_win.h',
           ],
         }],
         ['OS=="android"', {
           'sources!': [
@@ skipping 60 matching lines @@
                 'shutil.copyfile(\'<(ui_copy_target)\', \'<(ui_copy_dest)\'); ' \
                 'os.chmod(\'<(ui_copy_dest)\', 0700)'
               ]
             }
           ],
         },
       ],
     }],
   ],
 }