Switch to standard integer types in cc/.

cc/tiles/picture_layer_tiling.cc

 // Copyright 2012 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 "cc/tiles/picture_layer_tiling.h"
 
+#include <stddef.h>
+
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <set>
 
 #include "base/containers/hash_tables.h"
 #include "base/containers/small_map.h"
 #include "base/logging.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 1007 matching lines @@
 size_t PictureLayerTiling::GPUMemoryUsageInBytes() const {
   size_t amount = 0;
   for (TileMap::const_iterator it = tiles_.begin(); it != tiles_.end(); ++it) {
     const Tile* tile = it->second;
     amount += tile->GPUMemoryUsageInBytes();
   }
   return amount;
 }
 
 }  // namespace cc