Email WebLayer Sheriff when skew tests break.

Bug: 1135716
Change-Id: I8c77e6587d40aaa4e9a331f99ed40af5569d6e6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485886
Auto-Submit: Erik Staab <estaab@chromium.org>
Reviewed-by: Rakib Hasan <rmhasan@google.com>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818982}

infra/config/generated/luci-notify.cfg

@@ -2383,6 +2383,19 @@ notifiers {
     failed_step_regexp: "bot_update|compile|gclient runhooks|runhooks|update"
   }
 }
+notifiers {
+  notifications {
+    on_new_status: FAILURE
+    email {
+      recipients: "weblayer-sheriff@grotations.appspotmail.com"
+    }
+  }
+  builders {
+    bucket: "ci"
+    name: "android-weblayer-pie-x86-fyi-rel"
+    repository: "https://chromium.googlesource.com/chromium/src"
+  }
+}
 notifiers {
   notifications {
     on_occurrence: FAILURE

infra/config/notifiers.star

@@ -43,6 +43,14 @@ luci.notifier(
     notify_emails = ["chromium-component-mapping@google.com"],
 )
 
+luci.notifier(
+    name = "weblayer-sheriff",
+    on_new_status = ["FAILURE"],
+    notify_emails = [
+        "weblayer-sheriff@grotations.appspotmail.com",
+    ],
+)
+
 TREE_CLOSING_STEPS = [
     "bot_update",
     "compile",

infra/config/subprojects/chromium/ci.star

@@ -979,6 +979,7 @@ ci.android_fyi_builder(
         category = "weblayer",
         short_name = "p-x86-rel",
     ),
+    notifies = ["weblayer-sheriff"],
 )
 
 ci.android_fyi_builder(