[Sync] Removing duplicate includes, part 2.

components/sync/engine_impl/sync_scheduler_impl.h

 // Copyright 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.
 
 #ifndef COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_IMPL_H_
 #define COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_IMPL_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 83 matching lines @@
     CANARY_PRIORITY
   };
 
   enum PollAdjustType {
     // Restart the poll interval.
     FORCE_RESET,
     // Restart the poll interval only if its length has changed.
     UPDATE_INTERVAL,
   };
 
-  friend class SyncSchedulerTest;
+  friend class SyncSchedulerImplTest;
   friend class SyncSchedulerWhiteboxTest;
   friend class SyncerTest;
 
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest, TransientPollFailure);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest,
                            ServerConnectionChangeDuringBackoff);
   FRIEND_TEST_ALL_PREFIXES(SyncSchedulerTest,
                            ConnectionChangeCanaryPreemptedByNudge);
   FRIEND_TEST_ALL_PREFIXES(BackoffTriggersSyncSchedulerTest,
                            FailGetEncryptionKey);
@@ skipping 200 matching lines @@
   // A second factory specially for weak_handle_this_, to allow the handle
   // to be const and alleviate threading concerns.
   base::WeakPtrFactory<SyncSchedulerImpl> weak_ptr_factory_for_weak_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSchedulerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_IMPL_H_