Populate a basic SystemProfileProto in UKM.

components/ukm/ukm_service.h

 // Copyright 2017 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_UKM_UKM_SERVICE_H_
 #define COMPONENTS_UKM_UKM_SERVICE_H_
 
 #include <stddef.h>
 #include <memory>
 
 #include "base/feature_list.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "build/build_config.h"
 #include "components/metrics/metrics_reporting_scheduler.h"
 #include "components/metrics/persisted_logs.h"
+#include "components/metrics/proto/ukm/report.pb.h"
 
 class PrefRegistrySimple;
 class PrefService;
 
 namespace metrics {
 class MetricsLogUploader;
 class MetricsServiceClient;
 }
 
 namespace ukm {
@@ skipping 24 matching lines @@
   void Flush();
 
   // Delete any unsent local data.
   void Purge();
 
   // Registers the names of all of the preferences used by UkmService in
   // the provided PrefRegistry.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(UkmServiceTest, PopulateSystemProfile);
+
   // Start metrics client initialization.
   void StartInitTask();
 
   // Called when initialization tasks are complete, to notify the scheduler
   // that it can begin calling RotateLog.
   void FinishedInitTask();
 
   // Periodically called by scheduler_ to advance processing of logs.
   void RotateLog();
 
   // Constructs a new Report from available data and stores it in
   // persisted_logs_.
   void BuildAndStoreLog();
 
   // Start an upload of the next log from persisted_logs_.
   void StartScheduledUpload();
 
   // Called by log_uploader_ when the an upload is completed.
   void OnLogUploadComplete(int response_code);
 
+  // Populate system information (version, channel, etc.) in the Report.
+  void PopulateSystemProfile(Report* report);
+
   // A weak pointer to the PrefService used to read and write preferences.
   PrefService* pref_service_;
 
   // The UKM client id stored in prefs.
   uint64_t client_id_;
 
   // Used to interact with the embedder. Weak pointer; must outlive |this|
   // instance.
   metrics::MetricsServiceClient* const client_;
 
@@ skipping 15 matching lines @@
   // Weak pointers factory used to post task on different threads. All weak
   // pointers managed by this factory have the same lifetime as UkmService.
   base::WeakPtrFactory<UkmService> self_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UkmService);
 };
 
 }  // namespace ukm
 
 #endif  // COMPONENTS_UKM_UKM_SERVICE_H_