Converts test_wm to use aura

testing/buildbot/chromium.chromiumos.json

Index: testing/buildbot/chromium.chromiumos.json
diff --git a/testing/buildbot/chromium.chromiumos.json b/testing/buildbot/chromium.chromiumos.json
index 74e1082bf66a37d5633a3d4c656044c5c5c57ce9..401a13160ffcf24e571e59319a193ef6859dc71c 100644
--- a/testing/buildbot/chromium.chromiumos.json
+++ b/testing/buildbot/chromium.chromiumos.json
@@ -783,12 +783,18 @@
         "test": "url_unittests"
       },
       {
+        "args": [
+          "--override-use-gl-with-osmesa-for-tests"
+        ],
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "views_mus_interactive_ui_tests"
       },
       {
+        "args": [
+          "--override-use-gl-with-osmesa-for-tests"
+        ],
         "swarming": {
           "can_use_on_swarming_builders": true
         },
@@ -1123,12 +1129,18 @@
         "test": "url_unittests"
       },
       {
+        "args": [
+          "--override-use-gl-with-osmesa-for-tests"
+        ],
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "views_mus_interactive_ui_tests"
       },
       {
+        "args": [
+          "--override-use-gl-with-osmesa-for-tests"
+        ],
         "swarming": {
           "can_use_on_swarming_builders": true
         },