Switch to standard integer types in ios/.

ios/web/history_state_util_unittest.mm

 // 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.
 
 #import "ios/web/history_state_util.h"
 
+#include <stddef.h>
+
+#include "base/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #include "url/gurl.h"
 
 namespace web {
 namespace {
 struct TestEntry {
   std::string fromUrl;
   std::string toUrl;
   std::string expectedUrl;
@@ skipping 81 matching lines @@
   GURL baseUrl("http://not a url");
   std::string destination = "baz";
 
   GURL result = history_state_util::GetHistoryStateChangeUrl(fromUrl, baseUrl,
                                                              destination);
   EXPECT_FALSE(result.is_valid());
 }
 
 }  // anonymous namespace
 }  // namespace web