Moved //components/proximity_auth/cryptauth to //components/cryptauth.

components/proximity_auth/cryptauth/cryptauth_gcm_manager.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/proximity_auth/cryptauth/cryptauth_gcm_manager.h"
-
-#include "components/prefs/pref_registry_simple.h"
-#include "components/proximity_auth/cryptauth/pref_names.h"
-
-namespace proximity_auth {
-
-CryptAuthGCMManager::Observer::~Observer() {
-}
-
-void CryptAuthGCMManager::Observer::OnGCMRegistrationResult(bool success) {
-}
-
-void CryptAuthGCMManager::Observer::OnReenrollMessage() {
-}
-
-void CryptAuthGCMManager::Observer::OnResyncMessage() {
-}
-
-// static.
-void CryptAuthGCMManager::RegisterPrefs(PrefRegistrySimple* registry) {
-  registry->RegisterStringPref(prefs::kCryptAuthGCMRegistrationId,
-                               std::string());
-}
-
-}  // namespace proximity_auth