Re-enable WebGL 2.0 tests on Mac Minis.

content/test/gpu/generate_buildbot_json.py

Index: content/test/gpu/generate_buildbot_json.py
diff --git a/content/test/gpu/generate_buildbot_json.py b/content/test/gpu/generate_buildbot_json.py
index 70b9cd5950b955dfc730d9b34fcd2bd0ca30facf..114942ec82f78aab62e8bb483bc34484da70c0be 100755
--- a/content/test/gpu/generate_buildbot_json.py
+++ b/content/test/gpu/generate_buildbot_json.py
@@ -944,13 +944,6 @@ TELEMETRY_GPU_INTEGRATION_TESTS = {
           # http://crbug.com/599451: this test is currently too slow
           # to run on x64 in Debug mode. Need to shard the tests.
           'Win7 x64 Debug (NVIDIA)',
-          # http://crbug.com/637081: the Mac Minis are badly
-          # oversubscribed right now. Save some time by stopping
-          # running the WebGL 2.0 conformance tests on this
-          # configuration temporarily, until more capacity comes
-          # online (http://crbug.com/636472).
-          'Mac 10.10 Release (Intel)',
-          'Optional Mac 10.10 Release (Intel)',
         ],
       },
     ],