Eliminate ProfileOAuth2TokenService being a BCKS.

chrome/browser/signin/fake_profile_oauth2_token_service_wrapper.cc

+// 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 "chrome/browser/profiles/profile.h"
+#include "chrome/browser/signin/fake_profile_oauth2_token_service_wrapper.h"
+
+// static
+BrowserContextKeyedService* FakeProfileOAuth2TokenServiceWrapper::Build(
+    content::BrowserContext* context) {
+  Profile* profile = static_cast<Profile*>(context);
+  return new FakeProfileOAuth2TokenServiceWrapper(profile, false);
+}
+
+// static
+BrowserContextKeyedService*
+FakeProfileOAuth2TokenServiceWrapper::BuildAutoIssuingTokenService(
+    content::BrowserContext* context) {
+  Profile* profile = static_cast<Profile*>(context);
+  return new FakeProfileOAuth2TokenServiceWrapper(profile, true);
+}
+
+FakeProfileOAuth2TokenServiceWrapper::FakeProfileOAuth2TokenServiceWrapper(
+    Profile* profile,
+    bool auto_issue_tokens) {
+  if (auto_issue_tokens)
+    service_.set_auto_post_fetch_response_on_message_loop(true);
+  service_.Initialize(reinterpret_cast<Profile*>(profile));
+}
+
+FakeProfileOAuth2TokenServiceWrapper::~FakeProfileOAuth2TokenServiceWrapper() {
+  service_.Shutdown();
+}
+
+ProfileOAuth2TokenService*
+FakeProfileOAuth2TokenServiceWrapper::GetProfileOAuth2TokenService() {
+  return &service_;
+}