[Gardener] Disable ResourceCoalitionMacTest.Busy (merge to M122)

(cherry picked from commit a66b6e678f4fc186e4e4eee6de81c0bc7c063646)

Bug: 328102500
Change-Id: Ic271f195a9d10d469f40644940dd000518e3da12
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5340568
Reviewed-by: Emilia Paz <emiliapaz@chromium.org>
Commit-Queue: Kelvin Jiang <kelvinjiang@chromium.org>
Owners-Override: Kelvin Jiang <kelvinjiang@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1268110}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5454938
Owners-Override: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/branch-heads/6261@{#1186}
Cr-Branched-From: 9755d9d81e4a8cb5b4f76b23b761457479dbb06b-refs/heads/main@{#1250580}
diff --git a/components/power_metrics/resource_coalition_mac_unittest.mm b/components/power_metrics/resource_coalition_mac_unittest.mm
index 8e9110e..6860d54 100644
--- a/components/power_metrics/resource_coalition_mac_unittest.mm
+++ b/components/power_metrics/resource_coalition_mac_unittest.mm
@@ -82,7 +82,8 @@
 
 }  // namespace
 
-TEST(ResourceCoalitionMacTest, Busy) {
+// TODO(crbug.com/328102500): Test failing on Mac builders, hence disabled.
+TEST(ResourceCoalitionMacTest, DISABLED_Busy) {
   absl::optional<uint64_t> coalition_id =
       GetProcessCoalitionId(base::GetCurrentProcId());
   ASSERT_TRUE(coalition_id.has_value());