Make VariationsService simulate received seeds.

chrome/browser/metrics/variations/variations_seed_store.cc

 // Copyright 2014 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 "chrome/browser/metrics/variations/variations_seed_store.h"
 
 #include "base/base64.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
@@ skipping 144 matching lines @@
   }
 
   variations_serial_number_ = seed->serial_number();
   RecordVariationSeedEmptyHistogram(VARIATIONS_SEED_NOT_EMPTY);
   return true;
 }
 
 bool VariationsSeedStore::StoreSeedData(
     const std::string& seed_data,
     const std::string& base64_seed_signature,
-    const base::Time& date_fetched) {
+    const base::Time& date_fetched,
+    VariationsSeed* parsed_seed) {
   if (seed_data.empty()) {
     VLOG(1) << "Variations seed data is empty, rejecting the seed.";
     return false;
   }
 
   // Only store the seed data if it parses correctly.
   VariationsSeed seed;
   if (!seed.ParseFromString(seed_data)) {
     VLOG(1) << "Variations seed data is not in valid proto format, "
             << "rejecting the seed.";
@@ skipping 17 matching lines @@
 
   // TODO(asvitkine): This pref is no longer being used. Remove it completely
   // in a couple of releases.
   local_state_->ClearPref(prefs::kVariationsSeedHash);
 
   local_state_->SetString(prefs::kVariationsSeed, base64_seed_data);
   UpdateSeedDateAndLogDayChange(date_fetched);
   local_state_->SetString(prefs::kVariationsSeedSignature,
                           base64_seed_signature);
   variations_serial_number_ = seed.serial_number();
+  if (parsed_seed)
+    seed.Swap(parsed_seed);
 
   return true;
 }
 
 void VariationsSeedStore::UpdateSeedDateAndLogDayChange(
     const base::Time& server_date_fetched) {
   VariationsSeedDateChangeState date_change = SEED_DATE_NO_OLD_DATE;
 
   if (local_state_->HasPrefPath(prefs::kVariationsSeedDate)) {
     const int64 stored_date_value =
@@ skipping 50 matching lines @@
   }
 
   verifier.VerifyUpdate(reinterpret_cast<const uint8*>(seed_bytes.data()),
                         seed_bytes.size());
   if (verifier.VerifyFinal())
     return VARIATIONS_SEED_SIGNATURE_VALID;
   return VARIATIONS_SEED_SIGNATURE_INVALID_SEED;
 }
 
 }  // namespace chrome_variations