Make base_unittests_apk actually work

build/android/gyp/write_ordered_libraries.py

 #!/usr/bin/env python
 #
 # Copyright 2013 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.
 
 """Writes dependency ordered list of native libraries.
 
 The list excludes any Android system libraries, as those are not bundled with
 the APK.
@@ skipping 78 matching lines @@
   else:
     assert len(binaries) == 1
     all_deps = GetDependencies(binaries[0])
     libraries = [lib for lib in all_deps if not IsSystemLibrary(lib)]
 
   return GetSortedTransitiveDependencies(libraries)
 
 
 def main():
   parser = optparse.OptionParser()
+  build_utils.AddDepfileOption(parser)
 
   parser.add_option('--input-libraries',
       help='A list of top-level input libraries.')
   parser.add_option('--libraries-dir',
       help='The directory which contains shared libraries.')
   parser.add_option('--readelf', help='Path to the readelf binary.')
   parser.add_option('--output', help='Path to the generated .json file.')
   parser.add_option('--stamp', help='Path to touch on success.')
 
   options, _ = parser.parse_args()
@@ skipping 10 matching lines @@
       '{%s}' % ','.join(['"%s"' % s[3:-3] for s in libraries]))
 
   build_utils.WriteJson(
       {'libraries': libraries, 'java_libraries_list': java_libraries_list},
       options.output,
       only_if_changed=True)
 
   if options.stamp:
     build_utils.Touch(options.stamp)
 
+  if options.depfile:
+    print libraries
+    build_utils.WriteDepfile(
+        options.depfile,
+        libraries + build_utils.GetPythonDependencies())
+
 
 if __name__ == '__main__':
   sys.exit(main())