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

ui/gfx/gl/gl_surface.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 "ui/gfx/gl/gl_surface.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/threading/thread_local.h"
 #include "ui/gfx/gl/gl_context.h"
 #include "ui/gfx/gl/gl_implementation.h"
 
 namespace gfx {
 
 namespace {
-base::LazyInstance<
-    base::ThreadLocalPointer<GLSurface>,
-    base::LeakyLazyInstanceTraits<base::ThreadLocalPointer<GLSurface> > >
-        current_surface_ = LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<base::ThreadLocalPointer<GLSurface> >::Leaky
+    current_surface_ = LAZY_INSTANCE_INITIALIZER;
 }  // namespace
 
 // static
 bool GLSurface::InitializeOneOff() {
   static bool initialized = false;
   if (initialized)
     return true;
 
   std::vector<GLImplementation> allowed_impls;
   GetAllowedGLImplementations(&allowed_impls);
@@ skipping 170 matching lines @@
 
 void* GLSurfaceAdapter::GetConfig() {
   return surface_->GetConfig();
 }
 
 unsigned GLSurfaceAdapter::GetFormat() {
   return surface_->GetFormat();
 }
 
 }  // namespace gfx