Start and stop the safe browsing service depending on whether any profile is using it.

chrome/browser/profiles/profile_manager.cc

 // Copyright (c) 2011 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/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
+#include "base/stl_util-inl.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 379 matching lines @@
   }
 
   std::vector<ProfileManagerObserver*> observers_to_delete;
 
   for (size_t i = 0; i < observers.size(); ++i) {
     observers[i]->OnProfileCreated(profile);
     if (observers[i]->DeleteAfterCreation())
       observers_to_delete.push_back(observers[i]);
   }
 
-  observers_to_delete.clear();
+  STLDeleteElements(&observers_to_delete);
 }
 
 // static
 void ProfileManager::CreateMultiProfileAsync() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Create the next profile in the next available directory slot.
   PrefService* local_state = g_browser_process->local_state();
   DCHECK(local_state);
 
@@ skipping 127 matching lines @@
 }
 
 // static
 bool ProfileManager::IsMultipleProfilesEnabled() {
 #if defined(TOOLKIT_VIEWS) && !defined(OS_CHROMEOS)
   return true;
 #else
   return CommandLine::ForCurrentProcess()->HasSwitch(switches::kMultiProfiles);
 #endif
 }