[Android] Generate scripts at build time to run android tests.

chrome/chrome_tests.gypi

 # 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': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 2956 matching lines @@
             '../sync/sync.gyp:sync_javatests',
             '../testing/android/on_device_instrumentation.gyp:broker_java',
             '../testing/android/on_device_instrumentation.gyp:require_driver_apk',
             '../ui/android/ui_android.gyp:ui_javatests',
           ],
           'variables': {
             'apk_name': 'ChromeShellTest',
             'java_in_dir': 'android/shell/javatests',
             'additional_src_dirs': ['android/javatests_shell/src'],
             'is_test_apk': 1,
+            'test_type': 'instrumentation',
+            'isolate_file': 'chrome_shell_test_apk.isolate',
           },
-          'includes': [ '../build/java_apk.gypi' ],
+          'includes': [
+            '../build/java_apk.gypi',
+            '../build/android/test_runner.gypi',
+          ],
         },
         {
           # GN: //chrome/android:chrome_junit_tests
           'target_name': 'chrome_junit_tests',
           'type': 'none',
           'dependencies': [
             'chrome_java',
             '../base/base.gyp:base',
             '../base/base.gyp:base_java_test_support',
             '../testing/android/junit/junit_test.gyp:junit_test_support',
@@ skipping 52 matching lines @@
             '../base/base.gyp:base',
             '../base/base.gyp:base_java_test_support',
             '../content/content_shell_and_tests.gyp:content_java_test_support',
             '../sync/sync.gyp:test_support_sync_proto_java',
           ],
           'variables': {
             'apk_name': 'ChromeSyncShellTest',
             'java_in_dir': 'android/sync_shell/javatests',
             'additional_src_dirs': [ 'android/shell/javatests', ],
             'is_test_apk': 1,
+            'test_type': 'instrumentation',
           },
-          'includes': [ '../build/java_apk.gypi' ],
+          'includes': [
+            '../build/java_apk.gypi',
+            '../build/android/test_runner.gypi',
+          ],
         },
         {
           # GN: //chrome/test/android:chrome_java_test_support
           'target_name': 'chrome_java_test_support',
           'type': 'none',
           'variables': {
             'java_in_dir': '../chrome/test/android/javatests',
           },
           'dependencies': [
             'chrome_java',
@@ skipping 206 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }