DevTools: introduce WebInspector.Throttler

LayoutTests/inspector/extensions/extensions-resources.html

Index: LayoutTests/inspector/extensions/extensions-resources.html
diff --git a/LayoutTests/inspector/extensions/extensions-resources.html b/LayoutTests/inspector/extensions/extensions-resources.html
index ab1cb30328e48d18ed6b6c0d467391acf6878efa..4dc8d194140b647866bd78bacbd85e243a1ef745 100644
--- a/LayoutTests/inspector/extensions/extensions-resources.html
+++ b/LayoutTests/inspector/extensions/extensions-resources.html
@@ -27,15 +27,20 @@ InspectorTest.clickOnURL = function()
 
 InspectorTest.waitForStyleSheetChangedEvent = function(reply)
 {
-    var oldUpdateTimeout = WebInspector.StyleFile.updateTimeout;
-    WebInspector.StyleFile.updateTimeout = 0;
+    var originalSetTimeout = window.setTimeout;
+    window.setTimeout = innerSetTimeout;
     InspectorTest.addSniffer(WebInspector.CSSStyleModel.prototype, "_fireStyleSheetChanged", onStyleSheetChanged);
 
     function onStyleSheetChanged()
     {
-        WebInspector.StyleFile.updateTimeout = oldUpdateTimeout;
+        window.setTimeout = originalSetTimeout;
         reply();
     }
+
+    function innerSetTimeout(operation, timeout)
+    {
+        originalSetTimeout.call(window, operation, 0);
+    }
 }
 
 }