Eliminate ProfileOAuth2TokenService being a BCKS.

chrome/browser/signin/fake_profile_oauth2_token_service_wrapper.h

+// 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.
+
+#ifndef CHROME_BROWSER_SIGNIN_FAKE_PROFILE_OAUTH2_TOKEN_SERVICE_WRAPPER_H_
+#define CHROME_BROWSER_SIGNIN_FAKE_PROFILE_OAUTH2_TOKEN_SERVICE_WRAPPER_H_
+
+#include "chrome/browser/signin/fake_profile_oauth2_token_service.h"
+#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
+
+class Profile;
+
+// A wrapper around FakeProfileOAuth2TokenService to be able to use it as a
+// BCKS.
+class FakeProfileOAuth2TokenServiceWrapper
+    : public ProfileOAuth2TokenServiceWrapper {
+ public:
+  // Helper function to be used with
+  // BrowserContextKeyedService::SetTestingFactory().
+  static BrowserContextKeyedService* Build(content::BrowserContext* context);
+
+  // Helper function to be used with
+  // BrowserContextKeyedService::SetTestingFactory() that creates a
+  // FakeProfileOAuth2TokenService object that posts fetch responses on the
+  // current message loop.
+  static BrowserContextKeyedService* BuildAutoIssuingTokenService(
+      content::BrowserContext* context);
+
+  FakeProfileOAuth2TokenServiceWrapper(Profile* profile,
+                                       bool auto_issue_tokens);
+  virtual ~FakeProfileOAuth2TokenServiceWrapper();
+
+  // ProfileOAuth2TokenServiceWrapper implementation:
+  virtual ProfileOAuth2TokenService* GetProfileOAuth2TokenService() OVERRIDE;
+
+ private:
+  FakeProfileOAuth2TokenService service_;
+};
+
+#endif  // CHROME_BROWSER_SIGNIN_FAKE_PROFILE_OAUTH2_TOKEN_SERVICE_WRAPPER_H_