DevTools: Refactor network panel overview

Source/devtools/front_end/ui_lazy/TimelineGrid.js

Index: Source/devtools/front_end/ui_lazy/TimelineGrid.js
diff --git a/Source/devtools/front_end/ui_lazy/TimelineGrid.js b/Source/devtools/front_end/ui_lazy/TimelineGrid.js
index a223bd943eb1f48b1d2469dc39a8fffaee3b81b2..2231ca073196dbfbe8628824a9f70a07c8a1a871 100644
--- a/Source/devtools/front_end/ui_lazy/TimelineGrid.js
+++ b/Source/devtools/front_end/ui_lazy/TimelineGrid.js
@@ -39,7 +39,7 @@ WebInspector.TimelineGrid = function()
     this._dividersElement = this.element.createChild("div", "resources-dividers");
 
     this._gridHeaderElement = createElement("div");
-    this._gridHeaderElement.id = "timeline-grid-header";
+    this._gridHeaderElement.classList.add("timeline-grid-header");

[yurys, 2015/06/11 15:33:36]

There is no such class in css, consider removing this line.

[alph, 2015/06/11 16:35:00]

It's in timelineGrid.css

     this._eventDividersElement = this._gridHeaderElement.createChild("div", "resources-event-dividers");
     this._dividersLabelBarElement = this._gridHeaderElement.createChild("div", "resources-dividers-label-bar");
     this.element.appendChild(this._gridHeaderElement);