8210405: Javadoc search doesn't always consider full input upon Enter

Reviewed-by: jjg
diff --git a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js
index 06b2aa8..522d4c4 100644
--- a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/search.js
@@ -149,7 +149,7 @@
 $(function() {
     $("#search").catcomplete({
         minLength: 1,
-        delay: 100,
+        delay: 300,
         source: function(request, response) {
             var result = new Array();
             var presult = new Array();