[Sync] Unrevert fix for bug 154940

chrome/browser/sync/profile_sync_service.h

Index: chrome/browser/sync/profile_sync_service.h
diff --git a/chrome/browser/sync/profile_sync_service.h b/chrome/browser/sync/profile_sync_service.h
index e2f03844a81a311e49c4db74da8adbc43f1a6d36..7aeea0df5301a7474f9c40d2fb4dd842e2e3647d 100644
--- a/chrome/browser/sync/profile_sync_service.h
+++ b/chrome/browser/sync/profile_sync_service.h
@@ -648,6 +648,11 @@ class ProfileSyncService : public ProfileSyncServiceBase,
   friend class TestProfileSyncService;
   FRIEND_TEST_ALL_PREFIXES(ProfileSyncServiceTest, InitialState);
 
+  // Detects and attempts to recover from a previous improper datatype
+  // configuration where Keep Everything Synced and the preferred types were
+  // not correctly set.
+  void TrySyncDatatypePrefRecovery();
+
   // Starts up sync if it is not suppressed and preconditions are met.
   // Called from Initialize() and UnsuppressAndStart().
   void TryStart();