Force write of clean shutdown bit ASAP to try to help stats

chrome/browser/metrics/metrics_service.cc

 // Copyright (c) 2011 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.
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
 //
 // A MetricsService instance is typically created at application startup.  It
@@ skipping 1462 matching lines @@
 
 void MetricsService::LogExtensionRendererCrash() {
   IncrementPrefValue(prefs::kStabilityExtensionRendererCrashCount);
 }
 
 void MetricsService::LogRendererHang() {
   IncrementPrefValue(prefs::kStabilityRendererHangCount);
 }
 
 void MetricsService::LogCleanShutdown() {
+  // Redundant hack to write pref ASAP.

[wtc, 2011/09/06 17:44:22]

Would be nice to say why you want to write pref ASAP.

+  PrefService* pref = g_browser_process->local_state();
+  pref->SetBoolean(prefs::kStabilityExitedCleanly, true);
+  pref->SavePersistentPrefs();
+  // End of redundant hack.
+
   RecordBooleanPrefValue(prefs::kStabilityExitedCleanly, true);
 }
 
 #if defined(OS_CHROMEOS)
 void MetricsService::LogChromeOSCrash(const std::string &crash_type) {
   if (crash_type == "user")
     IncrementPrefValue(prefs::kStabilityOtherUserCrashCount);
   else if (crash_type == "kernel")
     IncrementPrefValue(prefs::kStabilityKernelCrashCount);
   else if (crash_type == "uncleanshutdown")
@@ skipping 216 matching lines @@
   if (local_state) {
     const PrefService::Preference* uma_pref =
         local_state->FindPreference(prefs::kMetricsReportingEnabled);
     if (uma_pref) {
       bool success = uma_pref->GetValue()->GetAsBoolean(&result);
       DCHECK(success);
     }
   }
   return result;
 }