Update from https://crrev.com/304418

testing/buildbot/chromium.chromiumos.json

 {
   "Linux ChromiumOS Tests (1)": {
     "gtest_tests": [
       "accessibility_unittests",
       {
         "test": "base_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true
         }
       },
@@ skipping 27 matching lines @@
       "google_apis_unittests",
       "gpu_unittests",
       "url_unittests",
       {
         "test": "interactive_ui_tests",
         "swarming": {
           "can_use_on_swarming_builders": true
         }
       },
       "jingle_unittests",
-      "content_unittests",
       "device_unittests",
       "media_unittests",
       {
         "test": "net_unittests",
         "swarming": {
           "can_use_on_swarming_builders": true
         }
       },
       "ppapi_unittests",
       "printing_unittests",
@@ skipping 172 matching lines @@
       {
         "test": "interactive_ui_tests",
         "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 3
         }
       }
     ]
   }
 }