Add a command-line switch "disable-desktop-shortcuts" to disable profile desktop shortcuts handling

chrome/browser/profiles/profile_manager.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 <set>
 
 #include "chrome/browser/profiles/profile_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 681 matching lines @@
   }
 }
 
 ProfileInfoCache& ProfileManager::GetProfileInfoCache() {
   if (!profile_info_cache_.get()) {
     profile_info_cache_.reset(new ProfileInfoCache(
         g_browser_process->local_state(), user_data_dir_));
 #if defined(OS_WIN)
     BrowserDistribution* dist = BrowserDistribution::GetDistribution();
     ProfileShortcutManagerWin* shortcut_manager = CreateShortcutManager();
-    if (dist && dist->CanCreateDesktopShortcuts() && shortcut_manager) {
+    const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+    if (dist && dist->CanCreateDesktopShortcuts() && shortcut_manager &&
+        !command_line.HasSwitch(switches::kDisableDesktopShortcuts)) {
       profile_shortcut_manager_.reset(shortcut_manager);
       profile_info_cache_->AddObserver(profile_shortcut_manager_.get());
     }
 #endif
   }
   return *profile_info_cache_.get();
 }
 
 void ProfileManager::AddProfileToCache(Profile* profile) {
   ProfileInfoCache& cache = GetProfileInfoCache();
@@ skipping 166 matching lines @@
     AddProfileToCache(profile);
   }
 }
 
 void ProfileManager::RunCallbacks(const std::vector<CreateCallback>& callbacks,
                                   Profile* profile,
                                   Profile::CreateStatus status) {
   for (size_t i = 0; i < callbacks.size(); ++i)
     callbacks[i].Run(profile, status);
 }