Switch to standard integer types in base/trace_event/.

base/trace_event/heap_profiler_heap_dump_writer.h

 // Copyright 2015 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.
 
 #ifndef BASE_TRACE_EVENT_HEAP_PROFILER_HEAP_DUMP_WRITER_H_
 #define BASE_TRACE_EVENT_HEAP_PROFILER_HEAP_DUMP_WRITER_H_
 
+#include <stddef.h>
+
 #include <set>
 
 #include "base/base_export.h"
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/trace_event/heap_profiler_allocation_context.h"
 
 namespace base {
 namespace trace_event {
@@ skipping 77 matching lines @@
   TypeNameDeduplicator* const type_name_deduplicator_;
 
   DISALLOW_COPY_AND_ASSIGN(HeapDumpWriter);
 };
 
 }  // namespace internal
 }  // namespace trace_event
 }  // namespace base
 
 #endif  // BASE_TRACE_EVENT_HEAP_PROFILER_HEAP_DUMP_WRITER_H_