Convert Mojo tests to use swarming.

mojo/mojo_system_unittests.isolate

Index: mojo/mojo_system_unittests.isolate
diff --git a/google_apis/google_apis_unittests.isolate b/mojo/mojo_system_unittests.isolate
similarity index 82%
copy from google_apis/google_apis_unittests.isolate
copy to mojo/mojo_system_unittests.isolate
index 5d9e22e8ba96da5edbf6590fcc064ace809420ad..cfd6b48918ae16454a7b2107da91ef8e2dbb51d7 100644
--- a/google_apis/google_apis_unittests.isolate
+++ b/mojo/mojo_system_unittests.isolate
@@ -3,20 +3,19 @@
 # found in the LICENSE file.
 {
   'includes': [
-    '../base/base.isolate',
+    '../mojo/mojo.isolate',
   ],
   'conditions': [
     ['OS=="win" or OS=="mac" or OS=="linux"', {
       'variables': {
         'command': [
           '../testing/test_env.py',
-          '<(PRODUCT_DIR)/google_apis_unittests<(EXECUTABLE_SUFFIX)',
+          '<(PRODUCT_DIR)/mojo_system_unittests<(EXECUTABLE_SUFFIX)',
           '--brave-new-test-launcher',
           '--test-launcher-bot-mode',
         ],
         'files': [
           '../testing/test_env.py',
-          'test/',
         ],
       },
     }],