Add support for GCM subtypes to desktop Instance ID implementation

components/gcm_driver/instance_id/instance_id_impl.cc

 // Copyright 2015 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/gcm_driver/instance_id/instance_id_impl.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 31 matching lines @@
     default:
       NOTREACHED() << "Unexpected value of result cannot be converted: "
                    << result;
   }
   return InstanceID::UNKNOWN_ERROR;
 }
 
 }  // namespace
 
 // static
-std::unique_ptr<InstanceID> InstanceID::Create(const std::string& app_id,
-                                               gcm::GCMDriver* gcm_driver) {
+std::unique_ptr<InstanceID> InstanceID::CreateInternal(
+    const std::string& app_id,
+    gcm::GCMDriver* gcm_driver) {
   return base::WrapUnique(new InstanceIDImpl(app_id, gcm_driver));
 }
 
 InstanceIDImpl::InstanceIDImpl(const std::string& app_id,
                                gcm::GCMDriver* gcm_driver)
     : InstanceID(app_id, gcm_driver), weak_ptr_factory_(this) {
   Handler()->GetInstanceIDData(
       app_id, base::Bind(&InstanceIDImpl::GetInstanceIDDataCompleted,
                          weak_ptr_factory_.GetWeakPtr()));
 }
@@ skipping 204 matching lines @@
 }
 
 gcm::InstanceIDHandler* InstanceIDImpl::Handler() {
   gcm::InstanceIDHandler* handler =
       gcm_driver()->GetInstanceIDHandlerInternal();
   DCHECK(handler);
   return handler;
 }
 
 }  // namespace instance_id