[Sync] Move //components/sync to the syncer namespace, take 2.

chrome/browser/browsing_data/history_counter_browsertest.cc

Index: chrome/browser/browsing_data/history_counter_browsertest.cc
diff --git a/chrome/browser/browsing_data/history_counter_browsertest.cc b/chrome/browser/browsing_data/history_counter_browsertest.cc
index 1156af6b97a7fb6f8c5800567ab81917d0d623ed..0e3c32cb08d5c932f1c9b4658471e7d2618a8f8d 100644
--- a/chrome/browser/browsing_data/history_counter_browsertest.cc
+++ b/chrome/browser/browsing_data/history_counter_browsertest.cc
@@ -454,7 +454,7 @@ IN_PROC_BROWSER_TEST_F(HistoryCounterTest, DISABLED_RestartOnSyncChange) {
   // active again.
 
   // Stopping the Sync service triggers a restart.
-  sync_service->RequestStop(sync_driver::SyncService::CLEAR_DATA);
+  sync_service->RequestStop(syncer::SyncService::CLEAR_DATA);
   WaitForCountingOrConfirmFinished();
 }