Bug 1803363 - Mirror ExtensionDNR glean distribution metrics into unified telemetry histograms. r=robwu

Differential Revision: https://phabricator.services.mozilla.com/D174029

toolkit/components/extensions/metrics.yaml

@@ -152,6 +152,7 @@ extensions.apis.dnr:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1803363#c11
     data_sensitivity:
       - technical
+    telemetry_mirror: WEBEXT_DNR_EVALUATE_RULES_MS
 
   evaluate_rules_count_max:
     type: quantity

toolkit/components/extensions/test/xpcshell/test_ext_dnr_static_rules.js

@@ -1550,6 +1550,8 @@ add_task(async function test_static_rules_telemetry() {
       },
       {
         metric: "evaluateRulesTime",
+        mirroredName: "WEBEXT_DNR_EVALUATE_RULES_MS",
+        mirroredType: "histogram",
       },
     ],
     "before test extension have been loaded"
@@ -1678,7 +1680,14 @@ add_task(async function test_static_rules_telemetry() {
   await assertDNRGetEnabledRulesets(extension, ["ruleset1"]);
 
   assertDNRTelemetryMetricsNoSamples(
-    [{ metric: "evaluateRulesTime" }, { metric: "evaluateRulesCountMax" }],
+    [
+      {
+        metric: "evaluateRulesTime",
+        mirroredName: "WEBEXT_DNR_EVALUATE_RULES_MS",
+        mirroredType: "histogram",
+      },
+      { metric: "evaluateRulesCountMax" },
+    ],
     "before any request have been intercepted"
   );
 
@@ -1689,7 +1698,14 @@ add_task(async function test_static_rules_telemetry() {
   );
 
   assertDNRTelemetryMetricsNoSamples(
-    [{ metric: "evaluateRulesTime" }, { metric: "evaluateRulesCountMax" }],
+    [
+      {
+        metric: "evaluateRulesTime",
+        mirroredName: "WEBEXT_DNR_EVALUATE_RULES_MS",
+        mirroredType: "histogram",
+      },
+      { metric: "evaluateRulesCountMax" },
+    ],
     "after restricted request have been intercepted (but no rules evaluated)"
   );
 
@@ -1714,6 +1730,8 @@ add_task(async function test_static_rules_telemetry() {
     [
       {
         metric: "evaluateRulesTime",
+        mirroredName: "WEBEXT_DNR_EVALUATE_RULES_MS",
+        mirroredType: "histogram",
         expectedSamplesCount: expectedEvaluateRulesTimeSamples,
       },
     ],
@@ -1740,6 +1758,8 @@ add_task(async function test_static_rules_telemetry() {
     [
       {
         metric: "evaluateRulesTime",
+        mirroredName: "WEBEXT_DNR_EVALUATE_RULES_MS",
+        mirroredType: "histogram",
         expectedSamplesCount: expectedEvaluateRulesTimeSamples,
       },
     ],

toolkit/components/telemetry/Histograms.json

@@ -15796,6 +15796,18 @@
     "description": "The number of times a browserAction popup is preloaded and results in one of the categories, keyed by addon id.",
     "keyed": true
   },
+  "WEBEXT_DNR_EVALUATE_RULES_MS": {
+    "record_in_processes": ["main"],
+    "products": ["firefox"],
+    "alert_emails": ["addons-dev-internal@mozilla.com"],
+    "bug_numbers": [1803363],
+    "expires_in_version": "120",
+    "kind": "exponential",
+    "releaseChannelCollection": "opt-out",
+    "high": 100000,
+    "n_buckets": 100,
+    "description": "Amount of time it takes to evaluate DNR rules."
+  },
   "WEBEXT_DNR_STARTUPCACHE_READ_BYTES": {
     "record_in_processes": ["main"],
     "products": ["firefox"],