Create a FakeAccountReconcilor that doesn't perform network requests

chrome/browser/signin/fake_account_reconcilor.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_ACCOUNT_RECONCILOR_H_
+#define CHROME_BROWSER_SIGNIN_FAKE_ACCOUNT_RECONCILOR_H_
+
+#include "components/signin/core/browser/account_reconcilor.h"
+
+namespace content {
+class BrowserContext;
+}
+
+class FakeAccountReconcilor : public AccountReconcilor {
+ public:
+  FakeAccountReconcilor(ProfileOAuth2TokenService* token_service,
+                        SigninManagerBase* signin_manager,
+                        SigninClient* client);
+
+  // Helper function to be used with KeyedService::SetTestingFactory().
+  static KeyedService* Build(content::BrowserContext* context);
+
+ protected:
+  // Override this method to perform no network call, instead the callback
+  // is called immediately
+  virtual void GetAccountsFromCookie(GetAccountsFromCookieCallback callback)
+      OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeAccountReconcilor);
+};
+
+#endif  // CHROME_BROWSER_SIGNIN_FAKE_ACCOUNT_RECONCILOR_H_