Use a direct include of time headers in net/, part 1.

net/base/network_time_notifier.h

 // Copyright (c) 2013 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.
 
 #ifndef NET_BASE_NETWORK_TIME_NOTIFIER_H_
 #define NET_BASE_NETWORK_TIME_NOTIFIER_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
-#include "base/time.h"
 #include "base/time/tick_clock.h"
+#include "base/time/time.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 // A class that receives updates for and maintains network time. Network time
 // sources can pass updates through UpdateNetworkTime, and network time
 // consumers can register as observers. This class is not thread-safe.
 class NET_EXPORT NetworkTimeNotifier {
  public:
   // Callback for observers to receive network time updates.
@@ skipping 48 matching lines @@
   // A vector of callbacks is used, rather than an ObserverList, so that the
   // lifetime of the observer can be bound to the callback.
   std::vector<ObserverCallback> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkTimeNotifier);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_NETWORK_TIME_NOTIFIER_H_