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- // 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_SERVICE_VARIATIONS_SERVICE_CLIENT_H_
- #define COMPONENTS_VARIATIONS_SERVICE_VARIATIONS_SERVICE_CLIENT_H_
- #include <string>
- #include "base/memory/scoped_refptr.h"
- #include "base/version.h"
- #include "components/variations/proto/study.pb.h"
- #include "components/version_info/channel.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 {
- public:
- virtual ~VariationsServiceClient() {}
- // Returns the version to use for variations seed simulation.
- virtual base::Version GetVersionForSimulation() = 0;
- virtual scoped_refptr<network::SharedURLLoaderFactory>
- GetURLLoaderFactory() = 0;
- virtual network_time::NetworkTimeTracker* GetNetworkTimeTracker() = 0;
- // 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;
- // Gets the channel to use for variations. The --fake-variations-channel
- // override switch takes precedence over the embedder-provided channel.
- // If that switch is not set, it will return the embedder-provided channel,
- // (which could be UNKNOWN).
- version_info::Channel GetChannelForVariations();
- // Returns the current form factor of the device.
- virtual Study::FormFactor GetCurrentFormFactor();
- // Returns whether the client is enterprise.
- // TODO(manukh): crbug.com/1003025. This is inconsistent with UMA which
- // analyzes brand_code to determine if the client is an enterprise user:
- // - For android, linux, and iOS, they are consistent because both UMA and
- // chromium consider all such devices as non-enterprise.
- // - For mac and chromeOS, they are inconsistent because UMA does not consider
- // any such devices as enterprise, but chromium does.
- // - For windows, both consider some clients as enterprise, but use different
- // chromium doesn't use brand_code so they may have inconsistent results.
- // That being said, studies restricted by finch won't need to filter on UMA as
- // well. But this could be confusing and could prevent using UMA filters on a
- // non finch-filtered study to analyze the finch-filtered launch potential.
- virtual bool IsEnterprise() = 0;
- private:
- // Gets the channel of the embedder. But all variations callers should use
- // |GetChannelForVariations()| instead.
- virtual version_info::Channel GetChannel() = 0;
- };
- } // namespace variations
- #endif // COMPONENTS_VARIATIONS_SERVICE_VARIATIONS_SERVICE_CLIENT_H_
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