Abstract chrome::GetChannel() through VariationsServiceClient

components/variations/service/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_SERVICE_VARIATIONS_SERVICE_CLIENT_H_
 #define COMPONENTS_VARIATIONS_SERVICE_VARIATIONS_SERVICE_CLIENT_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/version.h"
+#include "components/version_info/version_info.h"
 
 namespace base {
 class SequencedWorkerPool;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace network_time {
@@ skipping 18 matching lines @@
   // 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;
 
+  // Gets the channel of the embedder.
+  virtual version_info::Channel GetChannel() = 0;
+
   // Called from VariationsService::PerformPreMainMessageLoopStartup().
   virtual void OnInitialStartup() {}
 };
 
 }  // namespace chrome_variations
 
 #endif  // COMPONENTS_VARIATIONS_SERVICE_VARIATIONS_SERVICE_CLIENT_H_