Switch to standard integer types in ios/.

ios/web/navigation/navigation_item_impl.mm

 // 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.
 
 #include "ios/web/navigation/navigation_item_impl.h"
 
+#include <stddef.h>
+
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/url_formatter/url_formatter.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/gfx/text_elider.h"
 
 namespace {
 
 // Returns a new unique ID for use in NavigationItem during construction.  The
 // returned ID is guaranteed to be nonzero (which is the "no ID" indicator).
@@ skipping 250 matching lines @@
   http_request_headers_.reset();
 }
 
 void NavigationItemImpl::ResetForCommit() {
   // Any state that only matters when a navigation item is pending should be
   // cleared here.
   set_is_renderer_initiated(false);
 }
 
 }  // namespace web