[Variations] Read the policy from profile prefs if on Android

chrome/browser/metrics/variations/variations_service.h

 // Copyright (c) 2012 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 CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_SERVICE_H_
 #define CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_SERVICE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/time/time.h"
 #include "chrome/browser/metrics/variations/variations_request_scheduler.h"
 #include "chrome/browser/metrics/variations/variations_seed_store.h"
 #include "chrome/browser/web_resource/resource_request_allowed_notifier.h"
 #include "chrome/common/chrome_version_info.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "url/gurl.h"
 
 #if defined(OS_WIN)
 #include "chrome/browser/metrics/variations/variations_registry_syncer_win.h"
 #endif
 
 class PrefService;
 class PrefRegistrySimple;
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 namespace chrome_variations {
 
 class VariationsSeed;
 
 // Used to setup field trials based on stored variations seed data, and fetch
 // new seed data from the variations server.
 class VariationsService
     : public net::URLFetcherDelegate,
       public ResourceRequestAllowedNotifier::Observer {
  public:
@@ skipping 21 matching lines @@
 
   // Exposed for testing.
   void SetCreateTrialsFromSeedCalledForTesting(bool called);
 
   // Exposed for testing.
   static std::string GetDefaultVariationsServerURLForTesting();
 
   // Register Variations related prefs in Local State.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
+  // Register Variations related prefs in the Profile prefs.
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
   // Factory method for creating a VariationsService.
   static VariationsService* Create(PrefService* local_state);
 
+  void set_policy_pref_service(PrefService* service) {

[Alexei Svitkine (slow), 2014/02/10 22:12:48]

Add a comment.

[Mathieu, 2014/02/10 22:41:34]

Done.

+    policy_pref_service_ = service;
+  }
+
  protected:
   // Starts the fetching process once, where |OnURLFetchComplete| is called with
   // the response.
   virtual void DoActualFetch();
 
   // This constructor exists for injecting a mock notifier. It is meant for
   // testing only. This instance will take ownership of |notifier|.
   VariationsService(ResourceRequestAllowedNotifier* notifier,
                     PrefService* local_state);
 
@@ skipping 20 matching lines @@
 
   // ResourceRequestAllowedNotifier::Observer implementation:
   virtual void OnResourceRequestsAllowed() OVERRIDE;
 
   // Record the time of the most recent successful fetch.
   void RecordLastFetchTime();
 
   // The pref service used to store persist the variations seed.
   PrefService* local_state_;
 
+  // Used to obtain policy-related preferences. Depending on the platform, may
+  // end up being Local State or Profile prefs.

[Alexei Svitkine (slow), 2014/02/10 22:12:48]

Nit: "may end up being" -> "will be either"

[Mathieu, 2014/02/10 22:41:34]

Done.

+  PrefService* policy_pref_service_;
+
   VariationsSeedStore seed_store_;
 
   // Contains the scheduler instance that handles timing for requests to the
   // server. Initially NULL and instantiated when the initial fetch is
   // requested.
   scoped_ptr<VariationsRequestScheduler> request_scheduler_;
 
   // Contains the current seed request. Will only have a value while a request
   // is pending, and will be reset by |OnURLFetchComplete|.
   scoped_ptr<net::URLFetcher> pending_seed_request_;
@@ skipping 20 matching lines @@
   // Helper that handles synchronizing Variations with the Registry.
   VariationsRegistrySyncer registry_syncer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(VariationsService);
 };
 
 }  // namespace chrome_variations
 
 #endif  // CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_SERVICE_H_