DevTools: [Elements] fix editing as HTML inplace editor scrolling

Source/devtools/front_end/elements/ElementsTreeOutline.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 1442 matching lines @@
         }
     },
 
     /**
      * @param {boolean=} omitFocus
      * @param {boolean=} selectedByUser
      * @return {boolean}
      */
     select: function(omitFocus, selectedByUser)
     {
+        if (this._editing)
+            return false;
         if (this.treeOutline._handlePickNode(this.title, this._node))
             return true;
         return TreeElement.prototype.select.call(this, omitFocus, selectedByUser);
     },
 
     /**
      * @override
      * @param {boolean=} selectedByUser
      * @return {boolean}
      */
@@ skipping 1475 matching lines @@
                 treeOutline.rootDOMNode = node;
                 if (!treeOutline.children[0].hasChildren)
                     treeOutline._element.classList.add("single-node");
                 treeOutline.setVisible(true);
                 treeOutline.element.treeElementForTest = treeOutline.children[0];
                 resolve(treeOutline.element);
             }
         }
     }
 }