Modify WaitableEvent::Wait() to return void

base/threading/worker_pool_unittest.cc

 // 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.
 
 #include "base/threading/worker_pool.h"
 
 #include "base/location.h"
 #include "base/task.h"
 #include "base/synchronization/waitable_event.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 16 matching lines @@
 
  private:
   WaitableEvent* event_;
 };
 
 }  // namespace
 
 TEST_F(WorkerPoolTest, PostTask) {
   WaitableEvent test_event(false, false);
   WaitableEvent long_test_event(false, false);
-  bool signaled;
 
   WorkerPool::PostTask(FROM_HERE, new PostTaskTestTask(&test_event), false);
   WorkerPool::PostTask(FROM_HERE, new PostTaskTestTask(&long_test_event), true);
 
-  signaled = test_event.Wait();
-  EXPECT_TRUE(signaled);
-  signaled = long_test_event.Wait();
-  EXPECT_TRUE(signaled);
+  test_event.Wait();
+  long_test_event.Wait();
 }
 
 }  // namespace base