Require explicit selection of traits for LazyInstance

net/disk_cache/blockfile/file_win.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 "net/disk_cache/blockfile/file.h"
 
 #include <limits.h>
 #include <utility>
 
 #include "base/files/file_path.h"
@@ skipping 21 matching lines @@
 static_assert(offsetof(MyOverlapped, context_) == 0,
               "should start with overlapped");
 
 // Helper class to handle the IO completion notifications from the message loop.
 class CompletionHandler : public base::MessageLoopForIO::IOHandler {
   void OnIOCompleted(base::MessageLoopForIO::IOContext* context,
                      DWORD actual_bytes,
                      DWORD error) override;
 };
 
-static base::LazyInstance<CompletionHandler> g_completion_handler =
-    LAZY_INSTANCE_INITIALIZER;
+static base::LazyInstance<CompletionHandler>::DestructorAtExit
+    g_completion_handler = LAZY_INSTANCE_INITIALIZER;
 
 void CompletionHandler::OnIOCompleted(
     base::MessageLoopForIO::IOContext* context,
     DWORD actual_bytes,
     DWORD error) {
   MyOverlapped* data = reinterpret_cast<MyOverlapped*>(context);
 
   if (error) {
     DCHECK(!actual_bytes);
     actual_bytes = static_cast<DWORD>(net::ERR_CACHE_READ_FAILURE);
@@ skipping 193 matching lines @@
     base::MessageLoopForIO::IOHandler* handler = g_completion_handler.Pointer();
     base::MessageLoopForIO::current()->WaitForIOCompletion(100, handler);
   }
 }
 
 // Static.
 void File::DropPendingIO() {
 }
 
 }  // namespace disk_cache