Extract the handling of the clean exit beacon from MetricsService. The extracted implementation sup…

chrome/browser/metrics/chrome_metrics_service_client.cc

Index: chrome/browser/metrics/chrome_metrics_service_client.cc
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.cc b/chrome/browser/metrics/chrome_metrics_service_client.cc
index 4db6bcc74eb2088f9ff1e126a34e1177b2381274..833c80cb54c8860f19d87cf89265a8667df9579b 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -272,6 +272,14 @@ ChromeMetricsServiceClient::CreateUploader(
           on_upload_complete));
 }
 
+base::string16 ChromeMetricsServiceClient::GetRegistryBackupKey() {
+#if defined(OS_WIN)
+  return L"Software\\" PRODUCT_STRING_PATH L"\\StabilityMetrics";
+#else
+  return base::string16();
+#endif
+}
+
 void ChromeMetricsServiceClient::LogPluginLoadingError(
     const base::FilePath& plugin_path) {
 #if defined(ENABLE_PLUGINS)