Use platform sized counters for the refcounted classes in base.

content/common/one_writer_seqlock_unittest.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 "content/common/one_writer_seqlock.h"
 
 #include <stdlib.h>
 
 #include "base/atomic_ref_count.h"
 #include "base/macros.h"
@@ skipping 10 matching lines @@
   unsigned a, b, c;
 };
 
 class BasicSeqLockTestThread : public PlatformThread::Delegate {
  public:
   BasicSeqLockTestThread() {}
 
   void Init(
       content::OneWriterSeqLock* seqlock,
       TestData* data,
-      base::subtle::Atomic32* ready) {
+      base::AtomicRefCount* ready) {
     seqlock_ = seqlock;
     data_ = data;
     ready_ = ready;
   }
   void ThreadMain() override {
     while (AtomicRefCountIsZero(ready_)) {
       PlatformThread::YieldCurrentThread();
     }
 
     for (unsigned i = 0; i < 1000; ++i) {
@@ skipping 54 matching lines @@
 
     if (AtomicRefCountIsZero(&ready))
       break;
   }
 
   for (unsigned i = 0; i < kNumReaderThreads; ++i)
     PlatformThread::Join(handles[i]);
 }
 
 }  // namespace base