blob: c573180f2c5d3a48746a9a1cfbe1e9d6261b395a [file] [log] [blame]
// 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.
#include <string>
#include "base/callback.h"
#include "base/memory/scoped_refptr.h"
#include "base/strings/string16.h"
#include "base/version.h"
#include "components/version_info/version_info.h"
namespace network {
class SharedURLLoaderFactory;
namespace network_time {
class NetworkTimeTracker;
namespace variations {
// An abstraction of operations that depend on the embedder's (e.g. Chrome)
// environment.
class VariationsServiceClient {
virtual ~VariationsServiceClient() {}
// 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 a background thread that permits blocking.
virtual base::Callback<base::Version(void)>
GetVersionForSimulationCallback() = 0;
virtual scoped_refptr<network::SharedURLLoaderFactory>
GetURLLoaderFactory() = 0;
virtual network_time::NetworkTimeTracker* GetNetworkTimeTracker() = 0;
// Gets the channel of the embedder.
virtual version_info::Channel GetChannel() = 0;
// Gets whether this platform supports experiments which retain their group
// assignments across runs.
// TODO(paulmiller): Remove this once is resolved.
virtual bool GetSupportsPermanentConsistency();
// Returns whether the embedder overrides the value of the restrict parameter.
// |parameter| is an out-param that will contain the value of the restrict
// parameter if true is returned.
virtual bool OverridesRestrictParameter(std::string* parameter) = 0;
} // namespace variations