[DevTools] Properly update resizer in SourcesPanel.

third_party/WebKit/Source/devtools/front_end/ui/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 378 matching lines @@
     /**
      * @param {boolean} minimized
      */
     setDrawerMinimized: function(minimized)
     {
         this._drawerSplitWidget.setSidebarMinimized(minimized);
         this._drawerSplitWidget.setResizable(!minimized);
     },
 
     /**
+     * @return {boolean}
+     */
+    isDrawerMinimized: function()
+    {
+        return this._drawerSplitWidget.isSidebarMinimized();
+    },
+
+    /**
      * @override
      * @return {!Element}
      */
     defaultFocusedElement: function()
     {
         return this._currentPanel ? this._currentPanel.defaultFocusedElement() : null;
     },
 
     _keyPress: function(event)
     {
@@ skipping 183 matching lines @@
      */
     handleAction: function(context, actionId)
     {
         if (WebInspector.inspectorView.drawerVisible())
             WebInspector.inspectorView.closeDrawer();
         else
             WebInspector.inspectorView.showDrawer();
         return true;
     }
 }