Remove unused DRP code for migrating prefs

components/data_reduction_proxy/core/browser/data_reduction_proxy_prefs_unittest.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 "components/data_reduction_proxy/core/browser/data_reduction_proxy_prefs.h"
 
 #include <stdint.h>
 
 #include "base/strings/string_number_conversions.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_pref_names.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/prefs/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace data_reduction_proxy {
 
 class DataReductionProxyPrefsTest : public testing::Test {
  public:
   void SetUp() override {
     RegisterPrefs(local_state_prefs_.registry());
     PrefRegistrySimple* profile_registry = profile_prefs_.registry();
     RegisterPrefs(profile_registry);
-    profile_registry->RegisterBooleanPref(
-        prefs::kStatisticsPrefsMigrated, false);
   }
 
   PrefService* local_state_prefs() {
     return &local_state_prefs_;
   }
 
   PrefService* profile_prefs() {
     return &profile_prefs_;
   }
 
@@ skipping 48 matching lines @@
         prefs::kDailyOriginalContentLengthViaDataReductionProxy);
     registry->RegisterListPref(prefs::kDailyContentLengthViaDataReductionProxy);
     registry->RegisterInt64Pref(
         prefs::kDailyHttpContentLengthLastUpdateDate, 0L);
   }
 
   TestingPrefServiceSimple local_state_prefs_;
   TestingPrefServiceSimple profile_prefs_;
 };
 
-TEST_F(DataReductionProxyPrefsTest, TestMigration) {
-  local_state_prefs()->SetInt64(prefs::kHttpReceivedContentLength, 123L);
-  local_state_prefs()->SetInt64(prefs::kHttpOriginalContentLength, 234L);
-  local_state_prefs()->SetInt64(
-      prefs::kDailyHttpContentLengthLastUpdateDate, 345L);
-  InitializeList(
-      prefs::kDailyHttpOriginalContentLength, 0L, local_state_prefs());
-  InitializeList(
-      prefs::kDailyHttpReceivedContentLength, 1L, local_state_prefs());
-  InitializeList(
-      prefs::kDailyOriginalContentLengthWithDataReductionProxyEnabled,
-      2L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthWithDataReductionProxyEnabled,
-      3L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthHttpsWithDataReductionProxyEnabled,
-      4L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthShortBypassWithDataReductionProxyEnabled,
-      5L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthLongBypassWithDataReductionProxyEnabled,
-      6L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthUnknownWithDataReductionProxyEnabled,
-      7L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyOriginalContentLengthViaDataReductionProxy,
-      8L,
-      local_state_prefs());
-  InitializeList(
-      prefs::kDailyContentLengthViaDataReductionProxy,
-      9L,
-      local_state_prefs());
-
-  EXPECT_EQ(0L, profile_prefs()->GetInt64(prefs::kHttpReceivedContentLength));
-  EXPECT_EQ(0L, profile_prefs()->GetInt64(prefs::kHttpOriginalContentLength));
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyHttpOriginalContentLength)->GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyHttpReceivedContentLength)->GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyOriginalContentLengthWithDataReductionProxyEnabled)->
-          GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthWithDataReductionProxyEnabled)->GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthHttpsWithDataReductionProxyEnabled)->GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthShortBypassWithDataReductionProxyEnabled)->
-          GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthLongBypassWithDataReductionProxyEnabled)->
-          GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthUnknownWithDataReductionProxyEnabled)->
-          GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyOriginalContentLengthViaDataReductionProxy)->GetSize());
-  EXPECT_EQ(0u, profile_prefs()->GetList(
-      prefs::kDailyContentLengthViaDataReductionProxy)->GetSize());
-  EXPECT_EQ(0L, profile_prefs()->GetInt64(
-      prefs::kDailyHttpContentLengthLastUpdateDate));
-  EXPECT_FALSE(profile_prefs()->GetBoolean(prefs::kStatisticsPrefsMigrated));
-
-  data_reduction_proxy::MigrateStatisticsPrefs(local_state_prefs(),
-                                               profile_prefs());
-
-  EXPECT_EQ(123L, profile_prefs()->GetInt64(prefs::kHttpReceivedContentLength));
-  EXPECT_EQ(234L, profile_prefs()->GetInt64(prefs::kHttpOriginalContentLength));
-  VerifyList(prefs::kDailyHttpOriginalContentLength, 0L, profile_prefs());
-  VerifyList(prefs::kDailyHttpReceivedContentLength, 1L, profile_prefs());
-  VerifyList(
-      prefs::kDailyOriginalContentLengthWithDataReductionProxyEnabled,
-      2L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthWithDataReductionProxyEnabled,
-      3L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthHttpsWithDataReductionProxyEnabled,
-      4L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthShortBypassWithDataReductionProxyEnabled,
-      5L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthLongBypassWithDataReductionProxyEnabled,
-      6L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthUnknownWithDataReductionProxyEnabled,
-      7L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyOriginalContentLengthViaDataReductionProxy,
-      8L,
-      profile_prefs());
-  VerifyList(
-      prefs::kDailyContentLengthViaDataReductionProxy,
-      9L,
-      profile_prefs());
-  EXPECT_EQ(345L, profile_prefs()->GetInt64(
-      prefs::kDailyHttpContentLengthLastUpdateDate));
-  EXPECT_TRUE(profile_prefs()->GetBoolean(prefs::kStatisticsPrefsMigrated));
-
-  // Migration should only happen once.
-  local_state_prefs()->SetInt64(prefs::kHttpReceivedContentLength, 456L);
-  data_reduction_proxy::MigrateStatisticsPrefs(local_state_prefs(),
-                                               profile_prefs());
-  EXPECT_EQ(123L, profile_prefs()->GetInt64(prefs::kHttpReceivedContentLength));
-}
-
 }  // namespace data_reduction_proxy