Backed out changeset d76eea893d56 (bug 1518663) for failing bc at browser_policy_extensions.js on a CLOSED TREE

browser/components/enterprisepolicies/Policies.jsm

@@ -552,7 +552,6 @@ var Policies = {
                 onDownloadFailed: () => {
                   install.removeListener(listener);
                   log.error(`Download failed - ${location}`);
-                  clearRunOnceModification("extensionsInstall");
                 },
                 onInstallFailed: () => {
                   install.removeListener(listener);
@@ -1144,16 +1143,6 @@ async function runOncePerModification(actionName, policyValue, callback) {
   return callback();
 }
 
-/**
- * clearRunOnceModification
- *
- * Helper function that clears a runOnce policy.
-*/
-function clearRunOnceModification(actionName) {
-  let prefName = `browser.policies.runOncePerModification.${actionName}`;
-  Services.prefs.clearUserPref(prefName);
-}
-
 let gChromeURLSBlocked = false;
 
 // If any about page is blocked, we block the loading of all

browser/components/enterprisepolicies/tests/browser/browser_policy_extensions.js

@@ -92,43 +92,21 @@ add_task(async function test_addon_uninstall() {
   is(addon, null, "Addon should be uninstalled.");
 });
 
-add_task(async function test_addon_download_failure() {
-  // Test that if the download fails, the runOnce pref
-  // is cleared so that the dowbnload will happen again
-
-  let installPromise = wait_for_addon_install();
-  await setupPolicyEngineWithJson({
-    "policies": {
-      "Extensions": {
-        "Install": [
-          `${BASE_URL}/policytest_invalid.xpi`,
-        ],
-      },
-    },
-  });
-
-  try {
-    await installPromise;
-  } catch (e) {}
-  is(Services.prefs.prefHasUserValue("browser.policies.runOncePerModification.extensionsInstall"), false, "runOnce pref should be unset");
-});
-
 function wait_for_addon_install() {
   return new Promise((resolve, reject) => {
-    let listener = {};
-    listener.onInstallEnded = (install, addon) => {
-      AddonManager.removeInstallListener(listener);
-      resolve();
-    };
-    listener.onDownloadFailed = install => {
-      AddonManager.removeInstallListener(listener);
-      reject();
-    };
-    listener.onInstallFailed = install => {
-      AddonManager.removeInstallListener(listener);
-      reject();
-    };
-    AddonManager.addInstallListener(listener);
+      AddonManager.addInstallListener({
+        onInstallEnded(install, addon) {
+          if (addon.id == addonID) {
+            resolve();
+          }
+        },
+        onDownloadFailed: (install) => {
+          reject();
+        },
+        onInstallFailed: (install) => {
+          reject();
+        },
+      });
   });
 }