Reland 37913. Clear local state on exit.

chrome/browser/browser.cc

 // Copyright (c) 2010 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 "chrome/browser/browser.h"
 
 #include <algorithm>
 #include <string>
 
 #include "app/animation.h"
@@ skipping 1352 matching lines @@
   prefs->RegisterDictionaryPref(prefs::kBrowserWindowPlacement);
   prefs->RegisterIntegerPref(prefs::kOptionsWindowLastTabIndex, 0);
   prefs->RegisterIntegerPref(prefs::kDevToolsSplitLocation, -1);
 }
 
 // static
 void Browser::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterStringPref(prefs::kHomePage,
                             ASCIIToWide(chrome::kChromeUINewTabURL));
   prefs->RegisterBooleanPref(prefs::kHomePageIsNewTabPage, true);
+  prefs->RegisterBooleanPref(prefs::kClearSiteDataOnExit, false);
   prefs->RegisterBooleanPref(prefs::kShowHomeButton, false);
 #if defined(OS_MACOSX)
   // This really belongs in platform code, but there's no good place to
   // initialize it between the time when the AppController is created
   // (where there's no profile) and the time the controller gets another
   // crack at the start of the main event loop. By that time, BrowserInit
   // has already created the browser window, and it's too late: we need the
   // pref to be already initialized. Doing it here also saves us from having
   // to hard-code pref registration in the several unit tests that use
   // this preference.
@@ skipping 1851 matching lines @@
   if (TabHasUnloadListener(contents)) {
     // If the page has unload listeners, then we tell the renderer to fire
     // them. Once they have fired, we'll get a message back saying whether
     // to proceed closing the page or not, which sends us back to this method
     // with the HasUnloadListener bit cleared.
     contents->render_view_host()->FirePageBeforeUnload(false);
     return true;
   }
   return false;
 }