//components/variations: Create separate target for VariationsService

components/variations/variations_service_client.h

-// Copyright 2015 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 COMPONENTS_VARIATIONS_VARIATIONS_SERVICE_CLIENT_H_
-#define COMPONENTS_VARIATIONS_VARIATIONS_SERVICE_CLIENT_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "base/version.h"
-
-namespace base {
-class SequencedWorkerPool;
-}
-
-namespace net {
-class URLRequestContextGetter;
-}
-
-namespace network_time {
-class NetworkTimeTracker;
-}
-
-namespace chrome_variations {
-
-// An abstraction of operations that depend on the embedder's (e.g. Chrome)
-// environment.
-class VariationsServiceClient {
- public:
-  virtual ~VariationsServiceClient() {}
-
-  // Returns the current application locale (e.g. "en-US").
-  virtual std::string GetApplicationLocale() = 0;
-
-  // Returns the SequencedWorkerPool on which the VariationsService should run
-  // tasks that may block.
-  virtual base::SequencedWorkerPool* GetBlockingPool() = 0;
-
-  // Returns a callback that when run returns the base::Version to use for
-  // variations seed simulation. VariationsService guarantees that the callback
-  // will be run on the pool returned by
-  // VariationsServiceClient::GetBlockingPool().
-  virtual base::Callback<base::Version(void)>
-  GetVersionForSimulationCallback() = 0;
-
-  virtual net::URLRequestContextGetter* GetURLRequestContext() = 0;
-  virtual network_time::NetworkTimeTracker* GetNetworkTimeTracker() = 0;
-
-  // Called from VariationsService::PerformPreMainMessageLoopStartup().
-  virtual void OnInitialStartup() {}
-};
-
-}  // namespace chrome_variations
-
-#endif  // COMPONENTS_VARIATIONS_VARIATIONS_SERVICE_CLIENT_H_