Re-enable ExtensionSettingsApiTest after removing the "throttling" JS test

chrome/test/data/extensions/api_test/settings/simple_test/background.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var assertEq = chrome.test.assertEq;
 var assertTrue = chrome.test.assertTrue;
 var succeed = chrome.test.succeed;
 
 function test(stage0) {
   var apis = [
@@ skipping 344 matching lines @@
     }
     function stage2(values) {
       assertEq({
         foo: 'foo',
         bar: null,
       }, values);
       succeed();
     }
     area.clear(stage0);
   },
-
-  // NOTE: throttling test must come last, since each test runs with a single
-  // quota.
-  function throttling() {
-    // Test script is as so:
-    //   1 - storage.local shouldn't be exceeded.
-    //   2 - storage.sync should be exceeded.
-    //   3 - storage.local still shouldn't be exceeded.
-    //   4 - storage.sync should still be exceeded.
-    //
-    // In general, things should get throttled after 1000 calls (though in
-    // reality will be fewer due to previous tests).
-
-    function clearNTimes(area, n, whenDone) {
-      if (n <= 0) {
-        whenDone();
-      } else {
-        area.clear(function() {
-          clearNTimes(area, n - 1, whenDone);
-        });
-      }
-    }
-
-    var local = chrome.storage.local;
-    var sync = chrome.storage.sync;
-    var test = chrome.test;
-    var quotaError =
-        "This request exceeds the MAX_WRITE_OPERATIONS_PER_HOUR quota.";
-
-    clearNTimes(local, 1001, test.callbackPass(function() {
-      clearNTimes(sync, 1001, test.callbackFail(quotaError, function() {
-        clearNTimes(local, 1, test.callbackPass(function() {
-          clearNTimes(sync, 1, test.callbackFail(quotaError, test.succeed));
-        }));
-      }));
-    }));
-  },
 ]);