DevTools: get rid of Element.prototype.removeMatchingStyleClasses

Source/devtools/front_end/network/NetworkPanel.js

Index: Source/devtools/front_end/network/NetworkPanel.js
diff --git a/Source/devtools/front_end/network/NetworkPanel.js b/Source/devtools/front_end/network/NetworkPanel.js
index 96521fb338d43ff20876d949e5eea6e157687abe..48dd23aafae0865a5c8ce7f1883c8049c97b1b66 100644
--- a/Source/devtools/front_end/network/NetworkPanel.js
+++ b/Source/devtools/front_end/network/NetworkPanel.js
@@ -2502,6 +2502,7 @@ WebInspector.NetworkDataGridNode = function(parentView, request)
     this._linkifier = new WebInspector.Linkifier();
     this._isFilteredOut = true;
     this._isMatchingSearchQuery = false;
+    this._type = null;
 }
 
 WebInspector.NetworkDataGridNode.prototype = {
@@ -2522,10 +2523,12 @@ WebInspector.NetworkDataGridNode.prototype = {
         var element = this._element;
         element.classList.toggle("network-error-row", this._isFailed());
         element.classList.toggle("resource-cached", this._request.cached);
-        var typeClassName = "network-type-" + this._request.type.name();
-        if (!element.classList.contains(typeClassName)) {
-            element.removeMatchingStyleClasses("network-type-\\w+");
-            element.classList.add(typeClassName);
+        var type = this._request.type.name();
+        if (type != this._type) {
+            if (this._type)
+                element.classList.remove(this._type);
+            this._type = type;
+            element.classList.add(this._type);
         }
 
         WebInspector.SortableDataGridNode.prototype.createCells.call(this);