Bug 1148205 - Replace misnamed `formSubmitURL` and `hostname` properties on nsILoginInfo in services/fxaccounts/ r=vladikoff

Differential Revision: https://phabricator.services.mozilla.com/D33348

--HG--
extra : moz-landing-system : lando

services/fxaccounts/FxAccountsStorage.jsm

@@ -529,7 +529,7 @@ LoginManagerStorage.prototype = {
       let loginInfo = new Components.Constructor(
          "@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo, "init");
       let login = new loginInfo(FXA_PWDMGR_HOST,
-                                null, // aFormSubmitURL,
+                                null, // aFormActionOrigin,
                                 FXA_PWDMGR_REALM, // aHttpRealm,
                                 uid, // aUsername
                                 JSON.stringify(contents), // aPassword

services/fxaccounts/tests/xpcshell/test_loginmgr_storage.js

@@ -218,7 +218,7 @@ add_task(async function test_uidMigration() {
   let loginInfo = new Components.Constructor(
    "@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo, "init");
   let login = new loginInfo(FXA_PWDMGR_HOST,
-                            null, // aFormSubmitURL,
+                            null, // aFormActionOrigin,
                             FXA_PWDMGR_REALM, // aHttpRealm,
                             "foo@bar.com", // aUsername
                             JSON.stringify(contents), // aPassword