[Sync] Remove unneeded 'using syncer::' lines and 'syncer::' scopings

sync/internal_api/public/sessions/model_neutral_state.h

 // Copyright (c) 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 SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H
 #define SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H
 
 #include "base/basictypes.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/protocol/sync_protocol_error.h"
 
 namespace syncer {
 namespace sessions {
 
 // Grouping of all state that applies to all model types.  Note that some
 // components of the global grouping can internally implement finer grained
 // scope control, but the top level entity is still a singleton with respect to
 // model types.
 struct ModelNeutralState {
   ModelNeutralState();
   ~ModelNeutralState();
 
   // We GetUpdates for some combination of types at once.
   // requested_update_types stores the set of types which were requested.
-  syncer::ModelTypeSet updates_request_types;
+  ModelTypeSet updates_request_types;
 
   sync_pb::ClientToServerResponse updates_response;
 
   int num_successful_commits;
 
   // This is needed for monitoring extensions activity.
   int num_successful_bookmark_commits;
 
   // Download event counters.
   int num_updates_downloaded_total;
   int num_tombstone_updates_downloaded_total;
   int num_reflected_updates_downloaded_total;
 
   // If the syncer encountered a MIGRATION_DONE code, these are the types that
   // the client must now "migrate", by purging and re-downloading all updates.
-  syncer::ModelTypeSet types_needing_local_migration;
+  ModelTypeSet types_needing_local_migration;
 
   // Overwrites due to conflict resolution counters.
   int num_local_overwrites;
   int num_server_overwrites;
 
   // Any protocol errors that we received during this sync session.
   SyncProtocolError sync_protocol_error;
 
   // Records the most recent results of PostCommit and GetUpdates commands.
   SyncerError last_download_updates_result;
@@ skipping 11 matching lines @@
   // Number of changes remaining, according to the server.
   // Take it as an estimate unless it's value is zero, in which case there
   // really is nothing more to download.
   int64 num_server_changes_remaining;
 };
 
 }  // namespace sessions
 }  // namespace syncer
 
 #endif  // SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H_