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

base/base.gyp

Index: base/base.gyp
diff --git a/base/base.gyp b/base/base.gyp
index 0216494651aad2f2e53d9c8d896e9352c04cb737..2a45392ca81e4ed0fac83c72161328494c572841 100644
--- a/base/base.gyp
+++ b/base/base.gyp
@@ -1555,6 +1555,7 @@
           ],
           'variables': {
             'test_suite_name': 'base_unittests',
+            'isolate_file': 'base_unittests.isolate',

[mckev, 2015/05/01 17:12:09]

Should the hard-coded isolate file paths be removed from
build/android/pylib/gtest/setup.py once this change lands, and the bots are
updated to use these scripts?

[mikecase (-- gone --), 2015/05/01 17:27:05]

I think that is the plan. Once all of the bots specify the isolate file through
the testrunner option (--isolate-file-path), we can remove the hardcoded paths
in b/a/pylib/gtest/setup.py and b/a/pylib/instrumentation/setup.py.

           },
           'includes': [ '../build/apk_test.gypi' ],
         },