mac: Delete more 10.5-only code

chrome/browser/app_controller_mac.mm

 // 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
@@ skipping 1008 matching lines @@
   menuState_->UpdateCommandEnabled(IDC_FEEDBACK, true);
   menuState_->UpdateCommandEnabled(IDC_SHOW_SYNC_SETUP, true);
   menuState_->UpdateCommandEnabled(IDC_TASK_MANAGER, true);
 }
 
 // Conditionally adds the Profile menu to the main menu bar.
 - (void)initProfileMenu {
   NSMenu* mainMenu = [NSApp mainMenu];
   NSMenuItem* profileMenu = [mainMenu itemWithTag:IDC_PROFILE_MAIN_MENU];
 
-  // On Leopard, hiding main menubar items does not work. This manifests itself
-  // in Chromium as squished menu items <http://crbug.com/90753>. To prevent
-  // this, remove the Profile menu on Leopard, regardless of the user's
-  // multiprofile state.
-  if (!ProfileManager::IsMultipleProfilesEnabled() ||
-      base::mac::IsOSLeopard()) {
+  if (!ProfileManager::IsMultipleProfilesEnabled()) {
     [mainMenu removeItem:profileMenu];
     return;
   }
 
   // The controller will unhide the menu if necessary.
   [profileMenu setHidden:YES];
 
   profileMenuController_.reset(
       [[ProfileMenuController alloc] initWithMainMenuItem:profileMenu]);
 }
@@ skipping 250 matching lines @@
 
 //---------------------------------------------------------------------------
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac