Revert of [Autofill] Enable Autofill UKM by default.

components/autofill/core/browser/autofill_experiments.cc

 // 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.
 
 #include "components/autofill/core/browser/autofill_experiments.h"
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string16.h"
@@ skipping 15 matching lines @@
 namespace autofill {
 
 const base::Feature kAutofillCreditCardAssist{
     "AutofillCreditCardAssist", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillScanCardholderName{
     "AutofillScanCardholderName", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillCreditCardPopupLayout{
     "AutofillCreditCardPopupLayout", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillCreditCardLastUsedDateDisplay{
     "AutofillCreditCardLastUsedDateDisplay", base::FEATURE_DISABLED_BY_DEFAULT};
+const base::Feature kAutofillUkmLogging{"AutofillUkmLogging",
+                                        base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillUpstreamRequestCvcIfMissing{
     "AutofillUpstreamRequestCvcIfMissing", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillUpstreamUseAutofillProfileComparatorForName{
     "AutofillUpstreamUseAutofillProfileComparatorForName",
     base::FEATURE_ENABLED_BY_DEFAULT};
 const base::Feature kAutofillUpstreamUseNotRecentlyUsedAutofillProfile{
     "AutofillUpstreamUseNotRecentlyUsedAutofillProfile",
     base::FEATURE_DISABLED_BY_DEFAULT};
 const char kCreditCardSigninPromoImpressionLimitParamKey[] = "impression_limit";
 const char kAutofillCreditCardPopupBackgroundColorKey[] = "background_color";
@@ skipping 181 matching lines @@
     return true;
   }
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableOfferUploadCreditCards)) {
     return false;
   }
 
   return !group_name.empty() && group_name != "Disabled";
 }
 
+bool IsUkmLoggingEnabled() {
+  return base::FeatureList::IsEnabled(kAutofillUkmLogging);
+}
+
 bool IsAutofillUpstreamRequestCvcIfMissingExperimentEnabled() {
 #if defined(OS_ANDROID)
   return false;
 #else
   return base::FeatureList::IsEnabled(kAutofillUpstreamRequestCvcIfMissing);
 #endif
 }
 
 base::TimeDelta GetMaxTimeSinceAutofillProfileUseForCardUpload() {
   int value;
   const std::string param_value = variations::GetVariationParamValueByFeature(
       kAutofillUpstreamUseNotRecentlyUsedAutofillProfile,
       kAutofillUpstreamMaxMinutesSinceAutofillProfileUseKey);
   if (!param_value.empty() && base::StringToInt(param_value, &value))
     return base::TimeDelta::FromMinutes(value);
   return base::TimeDelta();
 }
 
 }  // namespace autofill