DevTools: use setImmediate instead of setTimeout for dispatching messages on devtools frontend in d…

Source/devtools/front_end/common/utilities.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 1729 matching lines @@
     {
         return this._targetObject;
     },
 
     clear: function()
     {
         this._targetObject = null;
     }
 };
 
+/**
+ * @param {function()} callback
+ */
+self.setImmediate = (function() {

[pfeldman, 2014/09/26 09:42:20]

@vsevik, @dgozman: do you want to count the number of style violations in this
function declaration? I can see about a dozen.

+    var callbacks = [];
+    function run() {
+        var cbList = callbacks.slice();
+        callbacks.length = 0;
+        cbList.forEach(function(callback) { callback(); });
+    };
+    return function setImmediate(callback) {
+        if (!callbacks.length)
+            new Promise(function(resolve,reject){ resolve(null);}).then(run);

[pfeldman, 2014/09/26 09:42:20]

self.setImmediate = function(callback)
{
    Promise.resolve().then(callback).catch(function(e) { console.error(e); });
}

+        callbacks.push(callback);
+    };
+})();