DevTools: editor should not loose scroll position when displaying inline values

Source/devtools/front_end/sources/JavaScriptSourceFrame.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 207 matching lines @@
     /**
      * @param {string} expression
      */
     _evaluateInConsole: function(expression)
     {
         var currentExecutionContext = WebInspector.context.flavor(WebInspector.ExecutionContext);
         if (currentExecutionContext)
             WebInspector.ConsoleModel.evaluateCommandInConsole(currentExecutionContext, expression);
     },
 
-    // View events
+    /**
+     * @override
+     */
     wasShown: function()
     {
         WebInspector.UISourceCodeFrame.prototype.wasShown.call(this);
-        if (this._executionLocation && this.loaded)
-            this._generateValuesInSource();
+        if (this._executionLocation && this.loaded) {
+            // We need CodeMirrorTextEditor to be initialized prior to this call. @see crbug.com/499889
+            setImmediate(this._generateValuesInSource.bind(this));
+        }
     },
 
+    /**
+     * @override
+     */
     willHide: function()
     {
         WebInspector.UISourceCodeFrame.prototype.willHide.call(this);
         this._popoverHelper.hidePopover();
     },
 
     onUISourceCodeContentChanged: function()
     {
         this._removeAllBreakpoints();
         WebInspector.UISourceCodeFrame.prototype.onUISourceCodeContentChanged.call(this);
@@ skipping 870 matching lines @@
         this._uiSourceCode.removeEventListener(WebInspector.UISourceCode.Events.WorkingCopyChanged, this._workingCopyChanged, this);
         this._uiSourceCode.removeEventListener(WebInspector.UISourceCode.Events.WorkingCopyCommitted, this._workingCopyCommitted, this);
         this._uiSourceCode.removeEventListener(WebInspector.UISourceCode.Events.TitleChanged, this._showBlackboxInfobarIfNeeded, this);
         WebInspector.moduleSetting("skipStackFramesPattern").removeChangeListener(this._showBlackboxInfobarIfNeeded, this);
         WebInspector.moduleSetting("skipContentScripts").removeChangeListener(this._showBlackboxInfobarIfNeeded, this);
         WebInspector.UISourceCodeFrame.prototype.dispose.call(this);
     },
 
     __proto__: WebInspector.UISourceCodeFrame.prototype
 }