DevTools: introduce View: a named widget with the toolbar.

third_party/WebKit/Source/devtools/front_end/sources/ThreadsSidebarPane.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
- * @extends {WebInspector.SidebarPane}
+ * @extends {WebInspector.View}
  * @implements {WebInspector.TargetManager.Observer}
  */
 WebInspector.ThreadsSidebarPane = function()
 {
-    WebInspector.SidebarPane.call(this, WebInspector.UIString("Threads"));
-    this.setVisible(false);
+    WebInspector.View.call(this, WebInspector.UIString("Threads"));
+    this.requestSetVisible(false);
 
     /** @type {!Map.<!WebInspector.DebuggerModel, !WebInspector.UIList.Item>} */
     this._debuggerModelToListItems = new Map();
     /** @type {!Map.<!WebInspector.UIList.Item, !WebInspector.Target>} */
     this._listItemsToTargets = new Map();
     /** @type {?WebInspector.UIList.Item} */
     this._selectedListItem = null;
     this.threadList = new WebInspector.UIList();
     this.threadList.show(this.element);
     WebInspector.targetManager.addModelListener(WebInspector.DebuggerModel, WebInspector.DebuggerModel.Events.DebuggerPaused, this._onDebuggerStateChanged, this);
@@ skipping 27 matching lines @@
         this._debuggerModelToListItems.set(debuggerModel, listItem);
         this._listItemsToTargets.set(listItem, target);
         this.threadList.addItem(listItem);
         this._updateDebuggerState(debuggerModel);
         this._updateVisibility();
     },
 
     _updateVisibility: function()
     {
         this._wasVisibleAtLeastOnce = this._wasVisibleAtLeastOnce || this._debuggerModelToListItems.size > 1;
-        this.setVisible(this._wasVisibleAtLeastOnce);
+        this.requestSetVisible(this._wasVisibleAtLeastOnce);
     },
 
     /**
      * @override
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target)
     {
         var debuggerModel = WebInspector.DebuggerModel.fromTarget(target)
         if (!debuggerModel)
@@ skipping 69 matching lines @@
     /**
      * @param {!WebInspector.UIList.Item} listItem
      */
     _onListItemClick: function(listItem)
     {
         WebInspector.context.setFlavor(WebInspector.Target, this._listItemsToTargets.get(listItem));
         listItem.element.scrollIntoViewIfNeeded();
     },
 
 
-    __proto__: WebInspector.SidebarPane.prototype
+    __proto__: WebInspector.View.prototype
 }