NetInfo: Slight update to the default network quality value

content/test/data/net_info.html

Index: content/test/data/net_info.html
diff --git a/content/test/data/net_info.html b/content/test/data/net_info.html
index 58f4702d5ac8f9c584df39991a6eb55ec932f2c8..1da26e47fc2fa371bb55e96c24450200dd98f283 100644
--- a/content/test/data/net_info.html
+++ b/content/test/data/net_info.html
@@ -7,7 +7,7 @@ function getType() {
 }
 
 function getDownlinkMax() {
-  sendValueToTest(navigator.connection.downlinkMax.toString());
+  sendValueToTest(navigator.connection.downlinkMax);
 }
 
 function getOnLine() {
@@ -19,11 +19,11 @@ function getEffectiveType() {
 }
 
 function getRtt() {
-  sendValueToTest(navigator.connection.rtt.toString());
+sendValueToTest(navigator.connection.rtt);
 }
 
 function getDownlink() {
-  sendValueToTest(navigator.connection.downlink.toString());
+  sendValueToTest(navigator.connection.downlink);
 }
 
 function sendValueToTest(value) {