Make android's run_instrumentation_suite() use generated wrapper scripts

scripts/slave/recipe_modules/chromium_android/example.py

 # 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.
 
 from recipe_engine.types import freeze
 
 DEPS = [
     'adb',
     'chromium',
     'chromium_android',
@@ skipping 159 matching lines @@
     if config.get('perf_config'):
       api.chromium_android.run_sharded_perf_tests(
           config='fake_config.json',
           flaky_config='flake_fakes.json',
           upload_archives_to_bucket='archives-bucket',
           known_devices_file=config.get('last_known_devices', None))
   except api.step.StepFailure as f:
     failure = f
 
   api.chromium_android.run_instrumentation_suite(
-      name='AndroidWebViewTest',
-      apk_under_test=api.chromium_android.apk_path('AndroidWebView.apk'),
-      test_apk=api.chromium_android.apk_path('AndroidWebViewTest.apk'),
-      isolate_file_path='android_webview/android_webview_test_apk.isolate',
+      name='android_webview_test_apk',
       flakiness_dashboard='test-results.appspot.com',
       annotation='SmallTest',
       except_annotation='FlakyTest',
       screenshot=True,
-      official_build=True,
       host_driven_root=api.path['checkout'].join('chrome', 'test'),
       timeout_scale=config.get('timeout_scale'),
       strict_mode=config.get('strict_mode'),
       step_test_data=lambda: api.raw_io.test_api.output(
           'logging...\nbeep\nboop\bbop'),
       device_flags=config.get('device_flags'))
   api.chromium_android.run_test_suite(
       'unittests',
       isolate_file_path=api.path['checkout'].join('some_file.isolate'),
       gtest_filter='WebRtc*',
@@ skipping 161 matching lines @@
              'Created xml report file at file:///path/to/testResult.xml',
              stream='stdout')) +
          api.override_step_data('Read test result and report failures',
              api.raw_io.output(result_xml_with_unexpected_failure_method)))
 
   yield (api.test('webview_cts_invalid_output') +
          properties_for('webview_cts') +
          api.override_step_data('Run CTS', api.raw_io.stream_output(
              'Invalid CTS output here...',
              stream='stdout')))