Create base::WorkerPoolJob. Use it for HostResolverImpl and DirectoryLister.

base/i18n/file_util_icu.cc

 // 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.
 
 // File utilities that use the ICU library go in this file.
 
 #include "base/i18n/file_util_icu.h"
 
 #include "base/file_path.h"
 #include "base/logging.h"
@@ skipping 63 matching lines @@
   for (int i = 0; i <= 0x10; ++i) {
     int plane_base = 0x10000 * i;
     set->add(plane_base + 0xFFFE, plane_base + 0xFFFF);
   }
   set->freeze();
 }
 
 class LocaleAwareComparator {
  public:
   static LocaleAwareComparator* GetInstance() {
-    return Singleton<LocaleAwareComparator>::get();
+    return Singleton<LocaleAwareComparator,
+                     LeakySingletonTraits<LocaleAwareComparator> >::get();

[eroman, 2010/12/22 00:51:47]

What is this change for?

[willchan no longer on Chromium, 2010/12/22 02:04:01]

This is explained in the changelist description.  This data is used on the
worker thread, so I did this to avoid shutdown crashes.

   }
 
   // Note: A similar function is available in l10n_util.
   // We cannot use it because base should not depend on l10n_util.
   // TODO(yuzo): Move some of l10n_util to base.
   int Compare(const string16& a, const string16& b) {
     // We are not sure if Collator::compare is thread-safe.
     // Use an AutoLock just in case.
     AutoLock auto_lock(lock_);
 
@@ skipping 96 matching lines @@
   // TODO(yuzo): Perhaps we should define SysNativeMBToUTF16?
   return LocaleAwareComparator::GetInstance()->Compare(
       WideToUTF16(base::SysNativeMBToWide(a.value().c_str())),
       WideToUTF16(base::SysNativeMBToWide(b.value().c_str()))) < 0;
 #else
   #error Not implemented on your system
 #endif
 }
 
 }  // namespace