Delete the stability file on clean exit.

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 2153ae594546321287b7d33a706dce169e850b76..b0433c087d36c448b5d82eae19cffd4376f8da3a 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -105,6 +105,7 @@
 #include "chrome/common/metrics_constants_util_win.h"
 #include "chrome/install_static/install_util.h"
 #include "chrome/installer/util/browser_distribution.h"
+#include "components/browser_watcher/stability_debugging_win.h"
 #include "components/browser_watcher/watcher_metrics_provider_win.h"
 #endif
 
@@ -394,6 +395,17 @@ void ChromeMetricsServiceClient::OnLogUploadComplete() {
 #endif
 }
 
+void ChromeMetricsServiceClient::OnLogCleanShutdown() {
+#if defined(OS_WIN)
+  base::FilePath user_data_dir;
+  if (!base::PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
+    // TODO(manzagop): add a metric.
+    return;
+  }
+  browser_watcher::MarkStabilityFileForDeletion(user_data_dir);
+#endif  // OS_WIN
+}
+
 void ChromeMetricsServiceClient::InitializeSystemProfileMetrics(
     const base::Closure& done_callback) {
   DCHECK(initialize_task_queue_.empty());