DevTools: Update ExecutionContext warning on external changes

third_party/WebKit/Source/devtools/front_end/console/ConsoleContextSelector.js

 // Copyright 2015 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
  * @implements {WebInspector.TargetManager.Observer}
  * @param {!Element} selectElement
  */
 WebInspector.ConsoleContextSelector = function(selectElement)
@@ skipping 189 matching lines @@
                 this._executionContextDestroyed(executionContexts[i]);
         }
     },
 
     /**
      * @param {!Element} option
      */
     _select: function(option)
     {
         this._selectElement.selectedIndex = Array.prototype.indexOf.call(/** @type {?} */ (this._selectElement), option);
+        this._updateSelectionWarning();
     },
 
     /**
      * @return {?Element}
      */
     _selectedOption: function()
     {
         if (this._selectElement.selectedIndex >= 0)
             return this._selectElement[this._selectElement.selectedIndex];
         return null;
     }
 }