[DevTools] Remove remaining usages of global properties.

Source/devtools/front_end/ui/TextPrompt.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.
@@ skipping 427 matching lines @@
                 if (commonPrefix[j] !== completion[j]) {
                     commonPrefix = commonPrefix.substr(0, j);
                     break;
                 }
             }
         }
         return commonPrefix;
     },
 
     /**
+     * @return {?Range}
+     * @suppressGlobalPropertiesCheck
+     */
+    _createRange: function()
+    {
+        return document.createRange();
+    },
+
+    /**
      * @param {!Selection} selection
      * @param {!Range} originalWordPrefixRange
      * @param {boolean} reverse
      * @param {!Array.<string>} completions
      * @param {number=} selectedIndex
      */
     _completionsReady: function(selection, originalWordPrefixRange, reverse, completions, selectedIndex)
     {
         if (!this._waitingForCompletions || !completions.length) {
             this.hideSuggestBox();
             return;
         }
         delete this._waitingForCompletions;
 
         var selectionRange = selection.getRangeAt(0);
 
-        var fullWordRange = document.createRange();
+        var fullWordRange = this._createRange();
         fullWordRange.setStart(originalWordPrefixRange.startContainer, originalWordPrefixRange.startOffset);
         fullWordRange.setEnd(selectionRange.endContainer, selectionRange.endOffset);
 
         if (originalWordPrefixRange.toString() + selectionRange.toString() !== fullWordRange.toString())
             return;
 
         selectedIndex = (this._disableDefaultSuggestionForEmptyInput && !this.text) ? -1 : (selectedIndex || 0);
 
         this._userEnteredRange = fullWordRange;
         this._userEnteredText = fullWordRange.toString();
 
         if (this._suggestBox)
             this._suggestBox.updateSuggestions(this._boxForAnchorAtStart(selection, fullWordRange), completions, selectedIndex, !this.isCaretAtEndOfPrompt(), this._userEnteredText);
 
         if (selectedIndex === -1)
             return;
 
         var wordPrefixLength = originalWordPrefixRange.toString().length;
         this._commonPrefix = this._buildCommonPrefix(completions, wordPrefixLength);
 
         if (this.isCaretAtEndOfPrompt()) {
             var completionText = completions[selectedIndex];
             var prefixText = this._userEnteredRange.toString();
             var suffixText = completionText.substring(wordPrefixLength);
             this._userEnteredRange.deleteContents();
             this._element.normalize();
-            var finalSelectionRange = document.createRange();
+            var finalSelectionRange = this._createRange();
 
             var prefixTextNode = createTextNode(prefixText);
             fullWordRange.insertNode(prefixTextNode);
 
             this.autoCompleteElement = createElementWithClass("span", "auto-complete-text");
             this.autoCompleteElement.textContent = suffixText;
 
             prefixTextNode.parentNode.insertBefore(this.autoCompleteElement, prefixTextNode.nextSibling);
 
             finalSelectionRange.setStart(prefixTextNode, wordPrefixLength);
@@ skipping 35 matching lines @@
     _applySuggestion: function(completionText, isIntermediateSuggestion, originalPrefixRange)
     {
         var wordPrefixLength;
         if (originalPrefixRange)
             wordPrefixLength = originalPrefixRange.toString().length;
         else
             wordPrefixLength = this._userEnteredText ? this._userEnteredText.length : 0;
 
         this._userEnteredRange.deleteContents();
         this._element.normalize();
-        var finalSelectionRange = document.createRange();
+        var finalSelectionRange = this._createRange();
         var completionTextNode = createTextNode(completionText);
         this._userEnteredRange.insertNode(completionTextNode);
         if (this.autoCompleteElement) {
             this.autoCompleteElement.remove();
             delete this.autoCompleteElement;
         }
 
         if (isIntermediateSuggestion)
             finalSelectionRange.setStart(completionTextNode, wordPrefixLength);
         else
@@ skipping 23 matching lines @@
     _acceptSuggestionInternal: function(prefixAccepted)
     {
         if (!this.autoCompleteElement || !this.autoCompleteElement.parentNode)
             return false;
 
         var text = this.autoCompleteElement.textContent;
         var textNode = createTextNode(text);
         this.autoCompleteElement.parentNode.replaceChild(textNode, this.autoCompleteElement);
         delete this.autoCompleteElement;
 
-        var finalSelectionRange = document.createRange();
+        var finalSelectionRange = this._createRange();
         finalSelectionRange.setStart(textNode, text.length);
         finalSelectionRange.setEnd(textNode, text.length);
 
         var selection = window.getSelection();
         selection.removeAllRanges();
         selection.addRange(finalSelectionRange);
 
         if (!prefixAccepted) {
             this.hideSuggestBox();
             this.dispatchEventToListeners(WebInspector.TextPrompt.Events.ItemAccepted);
@@ skipping 102 matching lines @@
                 return false;
             focusNode = focusNode.nextSibling;
         }
 
         return true;
     },
 
     moveCaretToEndOfPrompt: function()
     {
         var selection = window.getSelection();
-        var selectionRange = document.createRange();
+        var selectionRange = this._createRange();
 
         var offset = this._element.childNodes.length;
         selectionRange.setStart(this._element, offset);
         selectionRange.setEnd(this._element, offset);
 
         selection.removeAllRanges();
         selection.addRange(selectionRange);
     },
 
     /**
@@ skipping 163 matching lines @@
         if (newText !== undefined) {
             event.consume(true);
             this.text = newText;
 
             if (isPrevious) {
                 var firstNewlineIndex = this.text.indexOf("\n");
                 if (firstNewlineIndex === -1)
                     this.moveCaretToEndOfPrompt();
                 else {
                     var selection = window.getSelection();
-                    var selectionRange = document.createRange();
+                    var selectionRange = this._createRange();
 
                     selectionRange.setStart(this._element.firstChild, firstNewlineIndex);
                     selectionRange.setEnd(this._element.firstChild, firstNewlineIndex);
 
                     selection.removeAllRanges();
                     selection.addRange(selectionRange);
                 }
             }
 
             return;
         }
 
         WebInspector.TextPrompt.prototype.onKeyDown.apply(this, arguments);
     },
 
     __proto__: WebInspector.TextPrompt.prototype
 }