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

build/android/gyp/jinja_template.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.
 
 """Renders one or more template files using the Jinja template engine."""
 
 import codecs
 import argparse
@@ skipping 110 matching lines @@
   variables = _ParseVariables(options.variables, parser.error)
   processor = JinjaProcessor(options.loader_base_dir, variables=variables)
 
   if options.output:
     _ProcessFile(processor, inputs[0], options.output)
   else:
     _ProcessFiles(processor, inputs, options.inputs_base_dir,
                   options.outputs_zip)
 
   if options.depfile:
-    deps = processor.GetLoadedTemplates() + build_utils.GetPythonDependencies()
-    build_utils.WriteDepfile(options.depfile, deps)
+    output = options.output or options.outputs_zip
+    deps = processor.GetLoadedTemplates()
+    build_utils.WriteDepfile(options.depfile, output, deps)
 
 
 if __name__ == '__main__':
   main()