Use a direct include of time headers in base/, part 2.

base/synchronization/waitable_event_unittest.cc

 // 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.
 
 #include "base/synchronization/waitable_event.h"
 
 #include "base/compiler_specific.h"
-#include "base/time.h"
 #include "base/threading/platform_thread.h"
+#include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 TEST(WaitableEventTest, ManualBasics) {
   WaitableEvent event(true, false);
 
   EXPECT_FALSE(event.IsSignaled());
 
   event.Signal();
@@ skipping 79 matching lines @@
 
   EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 2u);
 
   PlatformThread::Join(thread);
 
   for (unsigned i = 0; i < 5; ++i)
     delete ev[i];
 }
 
 }  // namespace base