Bug 1373650. Disable Report Site Issue page action before running page action tests. r=adw

MozReview-Commit-ID: J5gAWBvw8td

--HG--
extra : rebase_source : 61823de48dcbc475aed6dee8e54ae20d4a1e0700

browser/modules/test/browser/browser_PageActions.js

@@ -14,6 +14,8 @@ add_task(async function init() {
     gBrowser,
     url: "http://example.com/",
   });
+
+  await disableNonReleaseActions();
   registerCleanupFunction(async () => {
     await BrowserTestUtils.removeTab(tab);
   });

browser/modules/test/browser/head.js

@@ -228,3 +228,14 @@ function getPopupNotificationNode() {
   return popupNotifications[0];
 }
 
+
+/**
+ * Disable non-release page actions (that are tested elsewhere).
+ *
+ * @return void
+ */
+async function disableNonReleaseActions() {
+  if (AppConstants.MOZ_DEV_EDITION || AppConstants.NIGHTLY_BUILD) {
+    await SpecialPowers.pushPrefEnv({set: [["extensions.webcompat-reporter.enabled", false]]});
+  }
+}