Support robolectric zip expectations (similar to command line zip)

Test: mma in /external/robolectric
Bug: 244627502
Change-Id: Id6b2b0bdb7b666a1e598b5451f869bf3d56953e5

third_party/zip/writer.go

@@ -162,10 +162,18 @@ func (w *Writer) Close() error {
 		if records > uint16max {
 			records = uint16max
 		}
-		// END ANDROID CHANGE
+		// Only store uint32max for the size and the offset if they don't fit.
+		// Robolectric currently doesn't support zip64 and fails to find the
+		// offset to the central directory when the number of files in the zip
+		// is larger than 2^16.
+		if size > uint32max {
 			size = uint32max
+		}
+		if offset > uint32max {
 			offset = uint32max
 		}
+		// END ANDROID CHANGE
+	}
 
 	// write end record
 	var buf [directoryEndLen]byte