Switch to standard integer types in base/trace_event/.

base/trace_event/heap_profiler_stack_frame_deduplicator.cc

 // 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.
 
 #include "base/trace_event/heap_profiler_stack_frame_deduplicator.h"
 
+#include <stddef.h>
+
 #include <string>
 #include <utility>
 
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "base/trace_event/trace_event_memory_overhead.h"
 
 namespace base {
 namespace trace_event {
 
@@ skipping 87 matching lines @@
   for (const FrameNode& node : frames_)
     maps_size += node.children.size() * sizeof(std::pair<StackFrame, int>);
 
   overhead->Add("StackFrameDeduplicator",
                 sizeof(StackFrameDeduplicator) + maps_size + frames_allocated,
                 sizeof(StackFrameDeduplicator) + maps_size + frames_resident);
 }
 
 }  // namespace trace_event
 }  // namespace base