Update experimental Java 8 support to use Desugar instead of Retrolambda

build/android/gyp/retrolambda.py

 #!/usr/bin/env python
 #
 # Copyright 2016 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.
 
 import argparse
 import os
 import shutil
 import sys
@@ skipping 34 matching lines @@
                       help='Jar input path to include .class files from.')
   parser.add_argument('--output-jar', required=True,
                       help='Jar output path.')
   parser.add_argument('--classpath', required=True,
                       help='Classpath.')
   parser.add_argument('--android-sdk-jar', required=True,
                       help='Android sdk jar path.')
   options = parser.parse_args(args)
 
   options.classpath = build_utils.ParseGnList(options.classpath)
-  input_paths = options.classpath + [options.input_jar]
+  input_paths = options.classpath + [options.input_jar,
+                                     options.android_sdk_jar]
   output_paths = [options.output_jar]
 
   build_utils.CallAndWriteDepfileIfStale(
       lambda: _OnStaleMd5(options.input_jar, options.output_jar,
                           options.classpath, options.android_sdk_jar),
       options,
       input_paths=input_paths,
       input_strings=[],
-      output_paths=output_paths)
+      output_paths=output_paths,
+      depfile_deps=input_paths)
 
 
 if __name__ == '__main__':
   sys.exit(main())