Need to check invalid scheme in navigator content utils

LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html

Index: LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html
diff --git a/LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html b/LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html
index d79ac9650f236908719f12af7959101db58e5f8f..731beb73973b2ff5c73bc1c93aec1493e2cf7229 100644
--- a/LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html
+++ b/LayoutTests/fast/dom/navigatorcontentutils/register-protocol-handler.html
@@ -50,10 +50,25 @@ valid_protocols.forEach(function (protocol) {
         debug('Fail: Valid protocol "' + protocol + '" failed.');
 });
 
+var invalid_schemes = ['mailto:', 'ssh:/', 'magnet:+', 'tel:sip'];
+invalid_schemes.forEach(function (scheme) {
+    var succeeded = false;
+    try {
+        window.navigator.registerProtocolHandler(scheme, 'invalid scheme uri=%s', 'title');
+    } catch (e) {
+        succeeded = true;
+    }
+
+    if (succeeded)
+        debug('Pass: Invalid scheme "' + scheme + '" falied.');
+    else
+        debug('Fail: Invalid scheme "' + scheme + '" allowed.');
+});
+
 var invalid_urls = ["", "%S"];
 invalid_urls.forEach(function (url) {
-   var succeeded = false;
-   try {
+    var succeeded = false;
+    try {
         window.navigator.registerProtocolHandler('web+myprotocol', url, 'title');
     } catch (e) {
         succeeded = 'SyntaxError' == e.name;