Add mojo_js_integration_tests and mojo_js_unittests to waterfall and trybot.

BUG=536669

Review URL: https://codereview.chromium.org/1632333002

Cr-Commit-Position: refs/heads/master@{#371653}

testing/buildbot/chromium.linux.json

@@ -541,6 +541,12 @@
         },
         "test": "mojo_common_unittests"
       },
+      {
+        "test": "mojo_js_integration_tests"
+      },
+      {
+        "test": "mojo_js_unittests"
+      },
       {
         "test": "mojo_public_application_unittests"
       },

testing/buildbot/gn_isolate_map.pyl

@@ -273,6 +273,14 @@
     "label": "//mojo/common:mojo_common_unittests",
     "type": "console_test_launcher",
   },
+  "mojo_js_integration_tests": {
+    "label": "//mojo/edk/js/test:js_integration_tests",
+    "type": "console_test_launcher",
+  },
+  "mojo_js_unittests": {
+    "label": "//mojo/edk/js/test:js_unittests",
+    "type": "console_test_launcher",
+  },
   "mojo_public_application_unittests": {
     "label": "//third_party/mojo/src/mojo/edk/test:mojo_public_applicaiton_unittests",
     "type": "unknown",