Fixing autocompletion issue with ComboBox on newer Chrome versions (#11524)

Newer Chrome versions do not work with random number hack to prevent auto completion, but it finally supports autocomplete=off.

Adapted from https://github.com/vaadin/framework/pull/11472

Fixes #11437

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VFilterSelect.java

              * way, and they might be useful in a combo box where new items are
              * allowed.
              */
-            getElement().setAttribute("autocomplete", Math.random() + "");
+            if (BrowserInfo.get().isChrome()) {
+                // Chrome supports "off" and random number does not work with Chrome
+                getElement().setAttribute("autocomplete", "off");        		
+            } else {
+                getElement().setAttribute("autocomplete", Math.random() + "");
+            }
         }
 
         /**