Build a new TokenCacheService so I can stop using TokenService for something it wasn't designed for.

chrome/browser/extensions/token_cache/token_cache_factory.h

+// Copyright (c) 2013 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_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_FACTORY_H_
+#define CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_FACTORY_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/profile_keyed_service_factory.h"
+
+namespace extensions {
+class TokenCacheService;
+}  // namespace extensions
+
+class TokenCacheServiceFactory : public ProfileKeyedServiceFactory {
+ public:
+  static extensions::TokenCacheService* GetForProfile(Profile* profile);
+  static TokenCacheServiceFactory* GetInstance();
+
+ private:
+  TokenCacheServiceFactory();
+  virtual ~TokenCacheServiceFactory();
+
+  friend struct DefaultSingletonTraits<TokenCacheServiceFactory>;
+
+   // Inherited from ProfileKeyedServiceFactory:
+   virtual ProfileKeyedService* BuildServiceInstanceFor(
+       Profile* profile) const OVERRIDE;
+
+   DISALLOW_COPY_AND_ASSIGN(TokenCacheServiceFactory);
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_FACTORY_H_