Wires keeping the launcher up to date with the browser.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 1254 matching lines @@
               4251,  # class 'std::xx' needs to have dll-interface.
             ],
           }],
           ['chromeos!=1', {
             'sources/': [ ['exclude', '_chromeos\\.(h|cc)$'] ]
           }],
           ['toolkit_views==0', {
             'sources/': [ ['exclude', '_views\\.(h|cc)$'] ]
           }],
           ['use_aura==0', {
-            'sources/': [ ['exclude', '_aura\\.(h|cc)$'] ]
+            'sources/': [ ['exclude', '_aura\\.(h|cc)$'],
+                          ['exclude', '(^|/)aura/'],
+            ]
           }],
           ['use_aura==0 or use_x11==0', {
             'sources/': [ ['exclude', '_aurax11\\.(h|cc)$'] ]
           }],
           ['use_aura==0 or OS!="win"', {
             'sources/': [ ['exclude', '_aurawin\\.(h|cc)$'] ]
           }],
         ],
       }],
     ],  # target_conditions for 'target_defaults'
@@ skipping 1270 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }