Move WebRTC mac tester to the new non-quarantined pool.

Chromium has split their macs into a quarantine and non-quarantine
pool, so let's move our tests into the non-quarantine pool for now
(we're not an active suspect in this investigation).

Bug: 828031
TBR=sergiyb@chromium.org
Change-Id: Iab8638d4da3bb88738b5817d65003bc996324583
Reviewed-on: https://chromium-review.googlesource.com/1103565
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
diff --git a/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc_fyi.py b/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc_fyi.py
index 5ae57bb..a071c0f 100644
--- a/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc_fyi.py
+++ b/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc_fyi.py
@@ -115,8 +115,8 @@
             })
 AddTestSpec('Mac Tester', 'mac',
             swarming={
-              'os': 'Mac-10.12',
-              'cpu': 'x86-64',
+              'gpu': '8086:0a2e',
+              'os': 'Mac-10.12.6',
             })
 AddTestSpec('Linux Tester', 'linux',
             swarming={