[Sync] Move some things from driver to base.

components/sync/driver/startup_controller.cc

 // Copyright 2014 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 "components/sync/driver/startup_controller.h"
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "components/sync/base/sync_prefs.h"
 #include "components/sync/driver/sync_driver_switches.h"
-#include "components/sync/driver/sync_prefs.h"
 
 namespace syncer {
 
 namespace {
 
 // The amount of time we'll wait to initialize sync if no data type triggers
 // initialization via a StartSyncFlare.
 const int kDeferredInitFallbackSeconds = 10;
 
 // Enum (for UMA, primarily) defining different events that cause us to
@@ skipping 166 matching lines @@
   if (!start_up_time_.is_null()) {
     RecordTimeDeferred();
     UMA_HISTOGRAM_ENUMERATION("Sync.Startup.DeferredInitTrigger",
                               TRIGGER_DATA_TYPE_REQUEST, MAX_TRIGGER_VALUE);
   }
   received_start_request_ = true;
   TryStart();
 }
 
 }  // namespace syncer