Update from https://crrev.com/320343

base/message_loop/message_pump_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 "base/message_loop/message_pump_win.h"
 
 #include <limits>
 #include <math.h>
 
 #include "base/message_loop/message_loop.h"
@@ skipping 655 matching lines @@
 }
 
 // static
 ULONG_PTR MessagePumpForIO::HandlerToKey(IOHandler* handler,
                                          bool has_valid_io_context) {
   ULONG_PTR key = reinterpret_cast<ULONG_PTR>(handler);
 
   // |IOHandler| is at least pointer-size aligned, so the lowest two bits are
   // always cleared. We use the lowest bit to distinguish completion keys with
   // and without the associated |IOContext|.
-  DCHECK((key & 1) == 0);
+  DCHECK_EQ(key & 1, 0u);
 
   // Mark the completion key as context-less.
   if (!has_valid_io_context)
     key = key | 1;
   return key;
 }
 
 // static
 MessagePumpForIO::IOHandler* MessagePumpForIO::KeyToHandler(
     ULONG_PTR key,
     bool* has_valid_io_context) {
   *has_valid_io_context = ((key & 1) == 0);
   return reinterpret_cast<IOHandler*>(key & ~static_cast<ULONG_PTR>(1));
 }
 
 }  // namespace base