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

sync/internal_api/public/engine/model_safe_worker.cc

 // 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.
 
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 
 namespace syncer {
 
 base::DictionaryValue* ModelSafeRoutingInfoToValue(
     const ModelSafeRoutingInfo& routing_info) {
   base::DictionaryValue* dict = new base::DictionaryValue();
   for (ModelSafeRoutingInfo::const_iterator it = routing_info.begin();
        it != routing_info.end(); ++it) {
-    dict->SetString(syncer::ModelTypeToString(it->first),
+    dict->SetString(ModelTypeToString(it->first),
                     ModelSafeGroupToString(it->second));
   }
   return dict;
 }
 
 std::string ModelSafeRoutingInfoToString(
     const ModelSafeRoutingInfo& routing_info) {
   scoped_ptr<DictionaryValue> dict(ModelSafeRoutingInfoToValue(routing_info));
   std::string json;
   base::JSONWriter::Write(dict.get(), &json);
   return json;
 }
 
-syncer::ModelTypePayloadMap ModelSafeRoutingInfoToPayloadMap(
+ModelTypePayloadMap ModelSafeRoutingInfoToPayloadMap(
     const ModelSafeRoutingInfo& routes,
     const std::string& payload) {
-  syncer::ModelTypePayloadMap types_with_payloads;
+  ModelTypePayloadMap types_with_payloads;
   for (ModelSafeRoutingInfo::const_iterator i = routes.begin();
        i != routes.end(); ++i) {
     types_with_payloads[i->first] = payload;
   }
   return types_with_payloads;
 }
 
-syncer::ModelTypeSet GetRoutingInfoTypes(
-    const ModelSafeRoutingInfo& routing_info) {
-  syncer::ModelTypeSet types;
+ModelTypeSet GetRoutingInfoTypes(const ModelSafeRoutingInfo& routing_info) {
+  ModelTypeSet types;
   for (ModelSafeRoutingInfo::const_iterator it = routing_info.begin();
        it != routing_info.end(); ++it) {
     types.Put(it->first);
   }
   return types;
 }
 
-ModelSafeGroup GetGroupForModelType(const syncer::ModelType type,
+ModelSafeGroup GetGroupForModelType(const ModelType type,
                                     const ModelSafeRoutingInfo& routes) {
   ModelSafeRoutingInfo::const_iterator it = routes.find(type);
   if (it == routes.end()) {
-    if (type != syncer::UNSPECIFIED && type != syncer::TOP_LEVEL_FOLDER)
+    if (type != UNSPECIFIED && type != TOP_LEVEL_FOLDER)
       LOG(WARNING) << "Entry does not belong to active ModelSafeGroup!";
     return GROUP_PASSIVE;
   }
   return it->second;
 }
 
 std::string ModelSafeGroupToString(ModelSafeGroup group) {
   switch (group) {
     case GROUP_UI:
       return "GROUP_UI";
     case GROUP_DB:
       return "GROUP_DB";
     case GROUP_FILE:
       return "GROUP_FILE";
     case GROUP_HISTORY:
       return "GROUP_HISTORY";
     case GROUP_PASSIVE:
       return "GROUP_PASSIVE";
     case GROUP_PASSWORD:
       return "GROUP_PASSWORD";
     default:
       NOTREACHED();
       return "INVALID";
   }
 }
 
 ModelSafeWorker::~ModelSafeWorker() {}
 
 }  // namespace syncer