cq.cfg: add equivalent {mac,win}_chromium}_rel_ng builders on LUCI

Bug: 731543, 731573
Change-Id: I16970ff1342f485405e00e9846b161f20c01a523
No-Try: true
No-Presubmit: true
Reviewed-on: https://chromium-review.googlesource.com/646494
Reviewed-by: Erik Staab <estaab@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Nodir Turakulov <nodir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#499027}

infra/config/cq.cfg

@@ -85,12 +85,32 @@ verifiers {
         experiment_percentage: 10
       }
       builders { name: "mac_chromium_compile_dbg_ng" }
-      builders { name: "mac_chromium_rel_ng" }
+      builders {
+        name: "mac_chromium_rel_ng"
+        equivalent_to {
+          # Builders in this bucket are defined in
+          # https://chromium.googlesource.com/chromium/src/+/infra/config/cr-buildbucket.cfg
+          bucket: "luci.chromium.try"
+          builder: "LUCI mac_chromium_rel_ng"
+          owner_whitelist_group: "luci-chromium-cq-dogfood"
+          percentage: 100
+        }
+      }
     }
     buckets {
       name: "master.tryserver.chromium.win"
       builders { name: "win_chromium_compile_dbg_ng" }
-      builders { name: "win_chromium_rel_ng" }
+      builders {
+        name: "win_chromium_rel_ng"
+        equivalent_to {
+          # Builders in this bucket are defined in
+          # https://chromium.googlesource.com/chromium/src/+/infra/config/cr-buildbucket.cfg
+          bucket: "luci.chromium.try"
+          builder: "LUCI win_chromium_rel_ng"
+          owner_whitelist_group: "luci-chromium-cq-dogfood"
+          percentage: 100
+        }
+      }
       # crbug.com/753184 - take out of the CQ temporarily.
       # builders { name: "win_chromium_x64_rel_ng" }
       builders { name: "win_clang" }