Enable openscreen_unittests on msan bots.

The bugs preventing this are now fixed.

Bug: 1143946
Cq-Include-Trybots: luci.chromium.try:linux_chromium_msan_rel_ng
Change-Id: I043d209e3ec41b708a2834c4a904dea79f9ffeb5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2527884Reviewed-by: Hans Wennborg <hans@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Auto-Submit: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825791}

testing/buildbot/chromium.clang.json

@@ -16138,6 +16138,23 @@
         "test": "net_unittests",
         "test_id_prefix": "ninja://net:net_unittests/"
       },
+      {
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "os": "Ubuntu-16.04"
+            }
+          ],
+          "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com"
+        },
+        "test": "openscreen_unittests",
+        "test_id_prefix": "ninja://chrome/browser/media/router:openscreen_unittests/"
+      },
       {
         "merge": {
           "args": [],

testing/buildbot/chromium.memory.json

@@ -11807,6 +11807,27 @@
         "test": "net_unittests",
         "test_id_prefix": "ninja://net:net_unittests/"
       },
+      {
+        "args": [
+          "--test-launcher-print-test-stdio=always"
+        ],
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "cpu": "x86-64",
+              "os": "Ubuntu-16.04"
+            }
+          ],
+          "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com"
+        },
+        "test": "openscreen_unittests",
+        "test_id_prefix": "ninja://chrome/browser/media/router:openscreen_unittests/"
+      },
       {
         "args": [
           "--test-launcher-print-test-stdio=always"

testing/buildbot/test_suite_exceptions.pyl

@@ -2238,8 +2238,6 @@
   },
   'openscreen_unittests': {
     'remove_from': [
-      'Linux MSan Tests',  # crbug.com/1143946
-      'ToTLinuxMSan',  # crbug.com/1143946
       'Linux CFI',  # crbug.com/1143983
       'CFI Linux ToT',  # crbug.com/1143983
     ],