Make GCMDriver::GetInstanceIDHandler protected, to avoid misuse

components/gcm_driver/instance_id/instance_id_android.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_android.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace instance_id {
 
 // static
 scoped_ptr<InstanceID> InstanceID::Create(const std::string& app_id,
-                                          gcm::GCMDriver* gcm_driver) {
-  return make_scoped_ptr(new InstanceIDAndroid(app_id));
+                                          gcm::InstanceIDHandler* handler) {
+  return make_scoped_ptr(new InstanceIDAndroid(app_id, handler));
 }
 
-InstanceIDAndroid::InstanceIDAndroid(const std::string& app_id)
-    : InstanceID(app_id) {
-}
+InstanceIDAndroid::InstanceIDAndroid(const std::string& app_id,
+                                     gcm::InstanceIDHandler* handler)
+    : InstanceID(app_id, handler) {}
 
 InstanceIDAndroid::~InstanceIDAndroid() {
 }
 
 void InstanceIDAndroid::GetID(const GetIDCallback& callback) {
   NOTIMPLEMENTED();
 }
 
 void InstanceIDAndroid::GetCreationTime(
     const GetCreationTimeCallback& callback) {
@@ skipping 12 matching lines @@
                                     const std::string& scope,
                                     const DeleteTokenCallback& callback) {
   NOTIMPLEMENTED();
 }
 
 void InstanceIDAndroid::DeleteID(const DeleteIDCallback& callback) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace instance_id