Track libziparchive API change.

Bug: http://b/129068177
Test: treehugger
Change-Id: I88f49a06db416a7c6ec8afe87cc9cca825eb5ccb
diff --git a/libs/androidfw/tests/TestHelpers.cpp b/libs/androidfw/tests/TestHelpers.cpp
index 9e320a2..a81bb6f 100644
--- a/libs/androidfw/tests/TestHelpers.cpp
+++ b/libs/androidfw/tests/TestHelpers.cpp
@@ -34,9 +34,8 @@
                               << "': " << ::ErrorCodeString(result);
   }
 
-  ::ZipString name(file.c_str());
   ::ZipEntry entry;
-  result = ::FindEntry(handle, name, &entry);
+  result = ::FindEntry(handle, file.c_str(), &entry);
   if (result != 0) {
     ::CloseArchive(handle);
     return AssertionFailure() << "Could not find file '" << file << "' in zip '" << zip_path