Bug 343902 - Replace usage of Date.now() with 1.0-compatible code. Long live Mozilla 1.0!

ChatZilla only.
p=rdmsoft@bugs.rdmsoft.com (Robert Marshall)
r=silver

extensions/irc/xul/content/handlers.js

@@ -685,7 +685,7 @@ function onWhoTimeout()
                 net.primServ.LIGHTWEIGHT_WHO = true;
                 net.primServ.sendData("WHO " + chan.encodedName + "\n");
                 net.lastWhoCheckChannel = chan;
-                net.lastWhoCheckTime = Date.now();
+                net.lastWhoCheckTime = Number(new Date());
                 return;
             }
 
@@ -705,7 +705,7 @@ function onWhoTimeout()
         var period = net.prefs["autoAwayPeriod"];
         // The time since the last check, with a 5s error margin to
         // stop us from not checking because the timer fired a tad early:
-        var waited = Date.now() - net.lastWhoCheckTime + 5000;
+        var waited = Number(new Date()) - net.lastWhoCheckTime + 5000;
         if (net.isConnected() && (period != 0) && (period * 60000 < waited))
             checkWho();
     }

extensions/irc/xul/content/static.js

@@ -184,7 +184,7 @@ function init()
         client.openLogFile(client);
     // kick-start a log-check interval to make sure we change logfiles in time:
     // It will fire 2 seconds past the next full hour.
-    setTimeout("checkLogFiles()", 3602000 - (Date.now() % 3600000));
+    setTimeout("checkLogFiles()", 3602000 - (Number(new Date()) % 3600000));
 
     // Make sure the userlist is on the correct side.
     updateUserlistSide(client.prefs["userlistLeft"]);
@@ -4628,7 +4628,7 @@ function checkLogFiles()
 
     // We use the same line again to make sure we keep a constant offset
     // from the full hour, in case the timers go crazy at some point.
-    setTimeout("checkLogFiles()", 3602000 - (Date.now() % 3600000));
+    setTimeout("checkLogFiles()", 3602000 - (Number(new Date()) % 3600000));
 }
 
 CIRCChannel.prototype.getLCFunction =