Fix android depfiles to always list GN's outputs[0]

build/android/gyp/aidl.py

 #!/usr/bin/env python
 #
 # Copyright 2014 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.
 
 """Invokes Android's aidl
 """
 
 import optparse
@@ skipping 35 matching lines @@
 
     with zipfile.ZipFile(options.srcjar, 'w') as srcjar:
       for path in build_utils.FindInDirectory(temp_dir, '*.java'):
         with open(path) as fileobj:
           data = fileobj.read()
         pkg_name = re.search(r'^\s*package\s+(.*?)\s*;', data, re.M).group(1)
         arcname = '%s/%s' % (pkg_name.replace('.', '/'), os.path.basename(path))
         srcjar.writestr(arcname, data)
 
   if options.depfile:
-    build_utils.WriteDepfile(
-        options.depfile,
-        build_utils.GetPythonDependencies())
+    build_utils.WriteDepfile(options.depfile, options.srcjar)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))