Require explicit selection of traits for LazyInstance

base/win/message_window.cc

 // Copyright 2013 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/message_window.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/win/current_module.h"
@@ skipping 14 matching lines @@
   ATOM atom() { return atom_; }
   HINSTANCE instance() { return instance_; }
 
  private:
   ATOM atom_;
   HINSTANCE instance_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowClass);
 };
 
-static LazyInstance<MessageWindow::WindowClass> g_window_class =
-    LAZY_INSTANCE_INITIALIZER;
+static LazyInstance<MessageWindow::WindowClass>::DestructorAtExit
+    g_window_class = LAZY_INSTANCE_INITIALIZER;
 
 MessageWindow::WindowClass::WindowClass()
     : atom_(0), instance_(CURRENT_MODULE()) {
   WNDCLASSEX window_class;
   window_class.cbSize = sizeof(window_class);
   window_class.style = 0;
   window_class.lpfnWndProc = &base::win::WrappedWindowProc<WindowProc>;
   window_class.cbClsExtra = 0;
   window_class.cbWndExtra = 0;
   window_class.hInstance = instance_;
@@ skipping 109 matching lines @@
     LRESULT message_result;
     if (self->message_callback_.Run(message, wparam, lparam, &message_result))
       return message_result;
   }
 
   return DefWindowProc(hwnd, message, wparam, lparam);
 }
 
 }  // namespace win
 }  // namespace base