Fix GN build for junit tests

build/android/gyp/write_build_config.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.
 
 """Writes a build_config file.
 
 The build_config file for a target is a json file containing information about
 how to build that target based on the target's dependencies. This includes
@@ skipping 202 matching lines @@
   if options.type == 'android_resources' or options.type == 'android_apk':
     config['resources'] = {}
     config['resources']['dependency_zips'] = [
         c['resources_zip'] for c in all_resources_deps]
     config['resources']['extra_package_names'] = []
 
   if options.type == 'android_apk':
     config['resources']['extra_package_names'] = [
         c['package_name'] for c in all_resources_deps if 'package_name' in c]
 
+  if options.type in ['android_apk', 'deps_dex']:
+    deps_dex_files = [c['dex_path'] for c in all_library_deps]
 
-  deps_dex_files = [c['dex_path'] for c in all_library_deps]
   # An instrumentation test apk should exclude the dex files that are in the apk
   # under test.
   if options.type == 'android_apk' and options.tested_apk_config:
     tested_apk_config_paths = GetAllDepsConfigsInOrder(
         [options.tested_apk_config])
     tested_apk_configs = [GetDepConfig(p) for p in tested_apk_config_paths]
     tested_apk_library_deps = DepsOfType('java_library', tested_apk_configs)
     tested_apk_deps_dex_files = [c['dex_path'] for c in tested_apk_library_deps]
     deps_dex_files = [
         p for p in deps_dex_files if not p in tested_apk_deps_dex_files]
@@ skipping 40 matching lines @@
   build_utils.WriteJson(config, options.build_config, only_if_changed=True)
 
   if options.depfile:
     build_utils.WriteDepfile(
         options.depfile,
         all_deps_config_paths + build_utils.GetPythonDependencies())
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))