[Android] Support --timeout-scale for generated instrumentation tests.

scripts/slave/recipes/chromium.py

 # 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.
 
 DEPS = [
   'adb',
   'amp',
   'bisect_tester',
   'depot_tools/bot_update',
   'chromium',
@@ skipping 725 matching lines @@
               'another_apk',
               'omg_so_many_apks',
             ]
           }
         ],
       },
     }))
   )
 
   yield (
+    api.test('dynamic_instrumentation_test_with_timeout_scale') +
+    api.properties.generic(mastername='chromium.android',
+                           buildername='Lollipop Low-end Tester',
+                           parent_buildername='Android arm Builder (dbg)') +
+    api.override_step_data('read test spec', api.json.output({
+      'Lollipop Low-end Tester': {
+        'instrumentation_tests': [
+          {
+            'test': 'ChromePublicTest',
+            'timeout_scale': 2,
+          }
+        ],
+      },
+    }))
+  )
+
+  yield (
     api.test('dynamic_junit_test') +
     api.properties.generic(mastername='chromium.linux',
                            buildername='Android Tests',
                            parent_buildername='Android Builder') +
     api.override_step_data('read test spec', api.json.output({
       'Android Tests': {
         'junit_tests': [
           {
             'test': 'base_junit_tests',
           },
@@ skipping 315 matching lines @@
 
   yield (
     api.test('kitchen_path_config') +
     api.properties(
         mastername='chromium.fyi',
         buildername='Linux Kitchen (kitchen_run)',
         slavename='build1-a1',
         buildnumber='77457',
         path_config='kitchen')
   )