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

build/android/findbugs_diff.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012 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.
 
 """Runs findbugs, and returns an error code if there are new warnings.
 
 Other options
   --only-analyze used to only analyze the class you are interested.
@@ skipping 87 matching lines @@
     print 'FindBugs run via:'
     print findbugs_command
     print
     print 'FindBugs reported the following issues:'
     for warning in sorted(findbugs_warnings):
       print str(warning)
     print '*' * 80
     print
   else:
     if args.depfile:
-      build_utils.WriteDepfile(
-          args.depfile,
-          build_utils.GetPythonDependencies() + args.auxclasspath
-              + args.jar_paths)
+      deps = args.auxclasspath + args.jar_paths
+      build_utils.WriteDepfile(args.depfile, args.output_file, deps)
     if args.stamp:
       build_utils.Touch(args.stamp)
 
   return len(findbugs_warnings)
 
 
 if __name__ == '__main__':
   sys.exit(main())