Add base:: to string16s in sandbox/.

sandbox/win/src/handle_closer.cc

 // Copyright (c) 2011 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 "sandbox/win/src/handle_closer.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/src/interceptors.h"
@@ skipping 156 matching lines @@
                        GET_USER_DEFAULT_LCID_ID, 4)) {
       return false;
     }
 
     return true;
   }
 
   return true;
 }
 
-bool GetHandleName(HANDLE handle, string16* handle_name) {
+bool GetHandleName(HANDLE handle, base::string16* handle_name) {
   static NtQueryObject QueryObject = NULL;
   if (!QueryObject)
     ResolveNTFunctionPtr("NtQueryObject", &QueryObject);
 
   ULONG size = MAX_PATH;
   scoped_ptr<UNICODE_STRING, base::FreeDeleter> name;
   NTSTATUS result;
 
   do {
     name.reset(static_cast<UNICODE_STRING*>(malloc(size)));
     DCHECK(name.get());
     result = QueryObject(handle, ObjectNameInformation, name.get(),
                          size, &size);
   } while (result == STATUS_INFO_LENGTH_MISMATCH ||
            result == STATUS_BUFFER_OVERFLOW);
 
   if (NT_SUCCESS(result) && name->Buffer && name->Length)
     handle_name->assign(name->Buffer, name->Length / sizeof(wchar_t));
   else
     handle_name->clear();
 
   return NT_SUCCESS(result);
 }
 
 }  // namespace sandbox