DevTools: render category filters in a way that they don't clash.

Source/devtools/front_end/components/InspectorView.js

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 100 matching lines @@
         {
             this.addPanel(new WebInspector.RuntimeExtensionPanelDescriptor(extension));
         }
         WebInspector.endBatchUpdate();
     },
 
     createToolbars: function()
     {
         this._leftToolbar = new WebInspector.ExtensibleToolbar("main-toolbar-left");
         this._leftToolbar.element.classList.add("inspector-view-toolbar", "inspector-view-toolbar-left");
-        this._leftToolbar.makeNarrow();
+
+        if (!Runtime.experiments.isEnabled("materialDesign"))
+            this._leftToolbar.makeNarrow();
         this._tabbedPane.insertBeforeTabStrip(this._leftToolbar.element);
 
         var rightToolbarContainer = createElementWithClass("div", "hbox flex-none flex-centered");
         this._tabbedPane.appendAfterTabStrip(rightToolbarContainer);
 
         this._rightToolbar = new WebInspector.ExtensibleToolbar("main-toolbar-right");
         this._rightToolbar.element.classList.add("inspector-view-toolbar", "flex-none");
         rightToolbarContainer.appendChild(this._rightToolbar.element);
 
         var closeButtonElement = rightToolbarContainer.createChild("div", "inspector-view-close-button flex-none", "dt-close-button");
@@ skipping 409 matching lines @@
 WebInspector.InspectorView.ToggleDrawerButtonProvider.prototype = {
     /**
      * @override
      * @return {?WebInspector.ToolbarItem}
      */
     item: function()
     {
         return WebInspector.inspectorView._drawer.toggleButton();
     }
 }