Reset browser.check_default_browser on update.

chrome/browser/ui/startup/default_browser_prompt.cc

 // Copyright (c) 2012 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/ui/startup/default_browser_prompt.h"
 
 #include <string>
 
 #include "base/location.h"
 #include "base/macros.h"
@@ skipping 278 matching lines @@
 void ShowDefaultBrowserPrompt(Profile* profile, HostDesktopType desktop_type) {
   // Do not check if Chrome is the default browser if there is a policy in
   // control of this setting.
   if (g_browser_process->local_state()->IsManagedPreference(
       prefs::kDefaultBrowserSettingEnabled)) {
     // Handling of the browser.default_browser_setting_enabled policy setting is
     // taken care of in BrowserProcessImpl.
     return;
   }
 
+  PrefService* prefs = profile->GetPrefs();
+  // Reset preferences if kResetCheckDefaultBrowser is true.
+  if (prefs->GetBoolean(prefs::kResetCheckDefaultBrowser)) {
+    prefs->SetBoolean(prefs::kResetCheckDefaultBrowser, false);
+    prefs->SetBoolean(prefs::kCheckDefaultBrowser, true);
+  }
+
   // Check if Chrome is the default browser but do not prompt if:
   // - The user said "don't ask me again" on the infobar earlier.
   // - The "suppress_default_browser_prompt_for_version" master preference is
   //     set to the current version.
-  bool show_prompt =
-      profile->GetPrefs()->GetBoolean(prefs::kCheckDefaultBrowser);
+  bool show_prompt = prefs->GetBoolean(prefs::kCheckDefaultBrowser);
   if (show_prompt) {
     const std::string disable_version_string =
         g_browser_process->local_state()->GetString(
             prefs::kBrowserSuppressDefaultBrowserPrompt);
     const Version disable_version(disable_version_string);
     DCHECK(disable_version_string.empty() || disable_version.IsValid());
     if (disable_version.IsValid()) {
       if (disable_version.Equals(Version(version_info::GetVersionNumber())))
         show_prompt = false;
     }
   }
 
   scoped_refptr<ShellIntegration::DefaultBrowserWorker>(
       new ShellIntegration::DefaultBrowserWorker(
           new CheckDefaultBrowserObserver(profile->GetPath(), show_prompt,
                                           desktop_type)))
       ->StartCheckIsDefault();
 }
 
 #if !defined(OS_WIN)
 bool ShowFirstRunDefaultBrowserPrompt(Profile* profile) {
   return false;
 }
 #endif
 
 }  // namespace chrome