1 files changed, 31 insertions, 8 deletions

diff --git a/chrome/browser/app_menu_model.cc b/chrome/browser/app_menu_model.cc
index 7ecaa57..dd5ce6a 100644
--- a/chrome/browser/app_menu_model.cc
+++ b/chrome/browser/app_menu_model.cc
@@ -1,9 +1,11 @@
-// Copyright (c) 2009 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.
+// 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/app_menu_model.h"
 
+#include <algorithm>
+
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "chrome/app/chrome_dll_resource.h"
@@ -43,9 +45,6 @@ void AppMenuModel::Build() {
   // done.  See OnGetProfilesDone().
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kEnableUserDataDirProfiles)) {
-    // Triggers profile list refresh in case it's changed.
-    UserDataManager::Get()->RefreshUserDataDirProfiles();
-
     if (!profiles_menu_contents_.get()) {
       profiles_menu_contents_.reset(new menus::SimpleMenuModel(delegate()));
       BuildProfileSubMenu();
@@ -91,15 +90,28 @@ void AppMenuModel::Build() {
   }
 }
 
-void AppMenuModel::BuildProfileSubMenu() {
+bool AppMenuModel::BuildProfileSubMenu() {
   // Nothing to do if the menu has gone away.
   if (!profiles_menu_contents_.get())
-    return;
+    return false;
+
+  // Triggers profile list refresh in case it's changed.
+  UserDataManager::Get()->RefreshUserDataDirProfiles();
 
   // Use the list of profiles in the browser.
   const std::vector<std::wstring>& profiles =
       browser_->user_data_dir_profiles();
 
+  // Check if profiles have changed.
+  if (!ProfilesChanged(profiles))
+    return false;
+
+  // Update known profiles.
+  known_profiles_.assign(profiles.begin(), profiles.end());
+
+  // Clear old profile menu items.
+  profiles_menu_contents_->Clear();
+
   // Add direct submenu items for profiles.
   std::vector<std::wstring>::const_iterator iter = profiles.begin();
   for (int i = IDC_NEW_WINDOW_PROFILE_0;
@@ -119,6 +131,17 @@ void AppMenuModel::BuildProfileSubMenu() {
   profiles_menu_contents_->AddItemWithStringId(
       IDC_NEW_PROFILE,
       IDS_SELECT_PROFILE_DIALOG_NEW_PROFILE_ENTRY);
+
+  return true;
+}
+
+bool AppMenuModel::ProfilesChanged(
+    const std::vector<std::wstring>& profiles) const {
+  if (profiles.size() != known_profiles_.size())
+    return true;
+
+  return !std::equal(profiles.begin(), profiles.end(),
+                     known_profiles_.begin());
 }
 
 string16 AppMenuModel::GetSyncMenuLabel() const {