proof of concept for building with libc++

chrome/browser/nacl_host/nacl_validation_cache.h

 // 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.
 
 #ifndef CHROME_BROWSER_NACL_HOST_NACL_VALIDATION_CACHE_H_
 #define CHROME_BROWSER_NACL_HOST_NACL_VALIDATION_CACHE_H_
 
 #include "base/containers/mru_cache.h"
 
+#include <vector>
+
 class Pickle;
 
 class NaClValidationCache {
  public:
   NaClValidationCache();
   ~NaClValidationCache();
 
   // Get the key used for HMACing validation signatures.  This should be a
   // string of cryptographically secure random bytes.
   const std::string& GetValidationCacheKey() const {
@@ skipping 33 matching lines @@
 
   typedef base::HashingMRUCache<std::string, bool> ValidationCacheType;
   ValidationCacheType validation_cache_;
 
   std::string validation_cache_key_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClValidationCache);
 };
 
 #endif  // CHROME_BROWSER_NACL_HOST_NACL_VALIDATION_CACHE_H_