Use TaskScheduler instead of WorkerPool in keystone_glue.mm.

chrome/browser/mac/keystone_glue_unittest.mm

 // Copyright (c) 2011 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.
 
 #import <Foundation/Foundation.h>
 #import <objc/objc-class.h>
 
+#include "base/test/scoped_task_scheduler.h"
 #import "chrome/browser/mac/keystone_glue.h"
 #import "chrome/browser/mac/keystone_registration.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 namespace ksr = keystone_registration;
 
 
 @interface FakeKeystoneRegistration : KSRegistration
 @end
@@ skipping 153 matching lines @@
           !successful_ &&
           (installs_ == 0));
 }
 
 @end
 
 
 namespace {
 
 class KeystoneGlueTest : public PlatformTest {
+ private:
+  base::test::ScopedTaskScheduler task_scheduler_;
 };
 
 // DISABLED because the mocking isn't currently working.
 TEST_F(KeystoneGlueTest, DISABLED_BasicGlobalCreate) {
   // Allow creation of a KeystoneGlue by mocking out a few calls
   SEL ids = @selector(infoDictionary);
   IMP oldInfoImp_ = [[KeystoneGlue class] instanceMethodForSelector:ids];
   IMP newInfoImp_ = [[FakeKeystoneGlue class] instanceMethodForSelector:ids];
   Method infoMethod_ = class_getInstanceMethod([KeystoneGlue class], ids);
   method_setImplementation(infoMethod_, newInfoImp_);
@@ skipping 28 matching lines @@
   [glue stopTimer];
 
   // Brief exercise of callbacks
   [glue addFakeRegistration];
   [glue checkForUpdate];
   [glue installUpdate];
   ASSERT_TRUE([glue confirmCallbacks]);
 }
 
 }  // namespace