sync: Finish non-blocking type encryption support

sync/engine/cryptographer_provider.cc

Index: sync/engine/cryptographer_provider.cc
diff --git a/sync/engine/cryptographer_provider.cc b/sync/engine/cryptographer_provider.cc
deleted file mode 100644
index 2c16bc4b14a01f50a5b136060dd4f88b70ebc39b..0000000000000000000000000000000000000000
--- a/sync/engine/cryptographer_provider.cc
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2014 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/engine/cryptographer_provider.h"
-
-namespace syncer {
-
-CryptographerProvider::CryptographerProvider() {
-}
-
-CryptographerProvider::~CryptographerProvider() {
-}
-
-ScopedCryptographerRef::ScopedCryptographerRef() {
-}
-
-ScopedCryptographerRef::~ScopedCryptographerRef() {
-}
-
-bool ScopedCryptographerRef::Initialize(ScopedCryptographerInternal* impl) {
-  scoped_cryptographer_internal_.reset(impl);
-  return IsValid();
-}
-
-bool ScopedCryptographerRef::IsValid() const {
-  return !!Get();
-}
-
-Cryptographer* ScopedCryptographerRef::Get() const {
-  if (!scoped_cryptographer_internal_)
-    return NULL;
-  return scoped_cryptographer_internal_->Get();
-}
-
-ScopedCryptographerInternal::ScopedCryptographerInternal() {
-}
-
-ScopedCryptographerInternal::~ScopedCryptographerInternal() {
-}
-
-}  // namespace syncer