Remove OnRecordingDisabled() metrics client interface.

components/metrics/test_metrics_service_client.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/metrics/test_metrics_service_client.h"
 
 #include "base/callback.h"
 #include "components/metrics/metrics_log_uploader.h"
 #include "components/metrics/proto/chrome_user_metrics_extension.pb.h"
 
@@ skipping 13 matching lines @@
 
 metrics::MetricsService* TestMetricsServiceClient::GetMetricsService() {
   return nullptr;
 }
 
 void TestMetricsServiceClient::SetMetricsClientId(
     const std::string& client_id) {
   client_id_ = client_id;
 }
 
-void TestMetricsServiceClient::OnRecordingDisabled() {
-}
-
 bool TestMetricsServiceClient::IsOffTheRecordSessionActive() {
   return false;
 }
 
 int32_t TestMetricsServiceClient::GetProduct() {
   return product_;
 }
 
 std::string TestMetricsServiceClient::GetApplicationLocale() {
   return "en-US";
@@ skipping 37 matching lines @@
 bool TestMetricsServiceClient::IsReportingPolicyManaged() {
   return reporting_is_managed_;
 }
 
 EnableMetricsDefault
 TestMetricsServiceClient::GetMetricsReportingDefaultState() {
   return enable_default_;
 }
 
 }  // namespace metrics