Run most of the tests on "Win x64 GN" that "Win7 x64 Tests (1)" does.

testing/buildbot/gn_isolate_map.pyl

 ## Copyright 2015 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.
 
 # gn_isolate_map.pyl - A mapping of Ninja build target names to GN labels and
 # test type classifications for the tests that are run on the bots.
 #
 # This mapping is used by MB so that we can uniformly refer to test binaries
 # by their Ninja target names in the recipes and not need to worry about how
 # they are referred to in GN or GYP specifically (the GYP target name is pretty
@@ skipping 368 matching lines @@
   "mojo_system_unittests": {
     "label": "//mojo/edk/system:mojo_system_unittests",
     "type": "unknown",
   },
   "mojo_view_manager_lib_unittests": {
     "label": "//components/view_manager/public/cpp/tests:mojo_view_manager_lib_unittests",
     "type": "unknown",
   },
   "message_center_unittests": {
     "label": "//ui/message_center:message_center_unittests",
-    "type": "unknown",
+    "type": "console_test_launcher",
   },
   "mash_unittests": {
     "label": "//mash:mash_unittests",
     "type": "unknown",
   },
   "nacl_loader_unittests": {
     "label": "//components/nacl/loader:nacl_loader_unittests",
     "type": "raw",
     "args": [],
   },
@@ skipping 144 matching lines @@
   },
   "wm_unittests": {
     "label": "//ui/wm:wm_unittests",
     "type": "windowed_test_launcher",
   },
   "wtf_unittests": {
     "label": "//third_party/WebKit/Source/wtf:wtf_unittests",
     "type": "console_test_launcher",
   },
 }