DevTools: Remember the last focused widget.

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

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 104 matching lines @@
     WebInspector.targetManager.observeTargets(this);
 }
 
 WebInspector.SourcesPanel._lastModificationTimeout = 200;
 
 WebInspector.SourcesPanel.minToolbarWidth = 215;
 
 WebInspector.SourcesPanel.prototype = {
     /**
      * @override
-     */
-    focus: function()
-    {
-        this._sourcesView.focus();
-    },
-
-    /**
-     * @override
      * @param {!WebInspector.Target} target
      */
     targetAdded: function(target)
     {
         var hasThreads = WebInspector.targetManager.targets(WebInspector.Target.Capability.JS).length > 1;
         if (hasThreads && !this._threadsSidebarPane) {
             this._threadsSidebarPane = /** @type {!WebInspector.View} */ (WebInspector.viewManager.view("sources.threads"));
             if (this._sidebarPaneStack) {
                 this._sidebarPaneStack.showView(this._threadsSidebarPane, this._splitWidget.isVertical() ? this._watchSidebarPane : this._callstackPane);
             }
@@ skipping 1232 matching lines @@
     __proto__: WebInspector.VBox.prototype
 }
 
 /**
  * @return {boolean}
  */
 WebInspector.SourcesPanel.WrapperView.isShowing = function()
 {
     return !!WebInspector.SourcesPanel.WrapperView._instance && WebInspector.SourcesPanel.WrapperView._instance.isShowing();
 }