Add a convenience typedef LazyInstance<T>::Leaky to avoid repeating T.

base/win/sampling_profiler.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 "base/win/sampling_profiler.h"
 
 #include <winternl.h>  // for NTSTATUS.
 
 #include "base/lazy_instance.h"
 
@@ skipping 86 matching lines @@
     if (ZwSetIntervalProfile &&
         ZwQueryIntervalProfile &&
         ZwCreateProfile &&
         ZwStartProfile &&
         ZwStopProfile) {
       initialized_ = true;
     }
   }
 }
 
-base::LazyInstance<ProfilerFuncs, base::LeakyLazyInstanceTraits<ProfilerFuncs> >
-    funcs = LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<ProfilerFuncs>::Leaky funcs = LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 
 namespace base {
 namespace win {
 
 SamplingProfiler::SamplingProfiler() : is_started_(false) {
 }
 
@@ skipping 111 matching lines @@
     return false;
 
   // According to Nebbet, the sampling interval is in units of 100ns.
   *sampling_interval = base::TimeDelta::FromMicroseconds(interval / 10);
 
   return true;
 }
 
 }  // namespace win
 }  // namespace base