Replace wstring with string16 in sandbox

sandbox/win/src/policy_low_level.h

 // Copyright (c) 2006-2008 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 SANDBOX_SRC_POLICY_LOW_LEVEL_H__
 #define SANDBOX_SRC_POLICY_LOW_LEVEL_H__
 
 #include <list>
 
 #include "base/basictypes.h"
+#include "base/strings/string16.h"
 #include "sandbox/win/src/ipc_tags.h"
 #include "sandbox/win/src/policy_engine_params.h"
 #include "sandbox/win/src/policy_engine_opcodes.h"
 
 // Low level policy classes.
 // Built on top of the PolicyOpcode and OpcodeFatory, the low level policy
 // provides a way to define rules on strings and numbers but it is unaware
 // of Windows specific details or how the Interceptions must be set up.
 // To use these classes you construct one or more rules and add them to the
 // LowLevelPolicy object like this:
@@ skipping 135 matching lines @@
   // the last opcode (the action opcode). Returns false if this operation fails.
   bool Done();
 
  private:
   void operator=(const PolicyRule&);
   // Called in a loop from AddStringMatch to generate the required string
   // match opcodes. rule_type, match_opts and parameter are the same as
   // in AddStringMatch.
   bool GenStringOpcode(RuleType rule_type, StringMatchOptions match_opts,
                        uint16 parameter, int state, bool last_call,
-                       int* skip_count, std::wstring* fragment);
+                       int* skip_count, base::string16* fragment);
 
   // Loop over all generated opcodes and copy them to increasing memory
   // addresses from opcode_start and copy the extra data (strings usually) into
   // decreasing addresses from data_start. Extra data is only present in the
   // string evaluation opcodes.
   bool RebindCopy(PolicyOpcode* opcode_start, size_t opcode_size,
                   char* data_start, size_t* data_size) const;
   PolicyBuffer* buffer_;
   OpcodeFactory* opcode_factory_;
   EvalResult action_;
   bool done_;
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_POLICY_LOW_LEVEL_H__