test IWYU fixups for base

base/values.cc

 // Copyright (c) 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 "base/values.h"
 
+#include <string.h>
+
 #include <algorithm>
 #include <ostream>
 
 #include "base/float_util.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
+#include "base/move.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 
 namespace base {
 
 namespace {
 
 // Make a deep copy of |node|, but don't include empty lists or dictionaries
 // in the copy. It's possible for this function to return NULL and it
 // expects |node| to always be non-NULL.
@@ skipping 1087 matching lines @@
 
 std::ostream& operator<<(std::ostream& out, const Value& value) {
   std::string json;
   JSONWriter::WriteWithOptions(&value,
                                JSONWriter::OPTIONS_PRETTY_PRINT,
                                &json);
   return out << json;
 }
 
 }  // namespace base