Change code in base (primarily unit tests) to use Sleep(TimeDelta).

base/spin_wait.h

 // Copyright (c) 2010 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.
 
 // This file provides a macro ONLY for use in testing.
 // DO NOT USE IN PRODUCTION CODE.  There are much better ways to wait.
 
 // This code is very helpful in testing multi-threaded code, without depending
 // on almost any primitives.  This is especially helpful if you are testing
 // those primitive multi-threaded constructs.
@@ skipping 26 matching lines @@
 
 #define SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(delta, expression) do { \
   base::TimeTicks start = base::TimeTicks::Now(); \
   const base::TimeDelta kTimeout = delta; \
     while (!(expression)) { \
       if (kTimeout < base::TimeTicks::Now() - start) { \
       EXPECT_LE((base::TimeTicks::Now() - start).InMilliseconds(), \
                 kTimeout.InMilliseconds()) << "Timed out"; \
         break; \
       } \
-      base::PlatformThread::Sleep(50); \
+      base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(50)); \
     } \
   } while (0)
 
 #endif  // BASE_SPIN_WAIT_H_