user build support for art (2 of 3)

Change-Id: I4696fee58e43db48540e2442c4235fc4bb02d9e3
diff --git a/src/zip_archive_test.cc b/src/zip_archive_test.cc
index bd0bc6d..7409ec4 100644
--- a/src/zip_archive_test.cc
+++ b/src/zip_archive_test.cc
@@ -36,14 +36,14 @@
 
   ScratchFile tmp;
   ASSERT_NE(-1, tmp.GetFd());
-  UniquePtr<File> file(OS::FileFromFd(tmp.GetFilename(), tmp.GetFd()));
+  UniquePtr<File> file(OS::FileFromFd(tmp.GetFilename().c_str(), tmp.GetFd()));
   ASSERT_TRUE(file.get() != NULL);
   bool success = zip_entry->ExtractToFile(*file);
   ASSERT_TRUE(success);
   close(tmp.GetFd());
 
   uint32_t computed_crc = crc32(0L, Z_NULL, 0);
-  int fd = open(tmp.GetFilename(), O_RDONLY);
+  int fd = open(tmp.GetFilename().c_str(), O_RDONLY);
   ASSERT_NE(-1, fd);
   const size_t kBufSize = 32768;
   uint8_t buf[kBufSize];