Switch to standard integer types in tools/.

tools/android/heap_profiler/heap_profiler.h

 // Copyright 2014 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 TOOLS_ANDROID_HEAP_PROFILER_HEAP_PROFILER_H_
 #define TOOLS_ANDROID_HEAP_PROFILER_HEAP_PROFILER_H_
 
+#include <stddef.h>
 #include <stdint.h>
+
 #include "third_party/bsdtrees/tree.h"
 
 #define HEAP_PROFILER_MAGIC_MARKER 0x42beef42L
 #define HEAP_PROFILER_MAX_DEPTH 12
 
 // The allocation is a result of a system malloc() invocation.
 #define HEAP_PROFILER_FLAGS_MALLOC 1
 
 // The allocation is a result of a mmap() invocation.
 #define HEAP_PROFILER_FLAGS_MMAP 2  // Allocation performed through mmap.
@@ skipping 62 matching lines @@
 void heap_profiler_free(void* addr, size_t size, uint32_t* old_flags);
 
 // Cleans up the HeapStats and all the internal data structures.
 void heap_profiler_cleanup(void);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // TOOLS_ANDROID_HEAP_PROFILER_HEAP_PROFILER_H_