fix for 20681

Added exception throwning to PlugletInputStream.reset method


git-svn-id: svn://10.0.0.236/trunk@58109 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/java/plugins/classes/org/mozilla/pluglet/mozilla/PlugletInputStream.java

@@ -50,6 +50,7 @@ public class PlugletInputStream extends InputStream {
     public synchronized void mark(int readlimit) {
     }
     public synchronized void reset() throws IOException {
+	throw new IOException("PlugletInputStream does not support mark");
     }
     public boolean markSupported() {
 	return false;