Put generated non-test Java runner scripts into bin/

ui/android/ui_android.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 164 matching lines @@
         '../../base/base.gyp:base',
         '../../base/base.gyp:base_junit_test_support',
         '../../testing/android/junit/junit_test.gyp:junit_test_support',
       ],
       'variables': {
         'main_class': 'org.chromium.testing.local.JunitTestMain',
         'src_paths': [
           'junit/',
         ],
         'test_type': 'junit',
+        'wrapper_script_name': 'helper/<(_target_name)',
       },
       'includes': [
         '../../build/android/test_runner.gypi',
         '../../build/host_jar.gypi',
       ],
     },
     {
       # GN version: //ui/android:ui_android_unittests
       'target_name': 'ui_android_unittests',
       'type': '<(gtest_target_type)',
@@ skipping 45 matching lines @@
             ],
             'sources': [
               'ui_android_unittests_apk.isolate',
             ],
           },
         ]
       }
     ],
   ]
 }