DevTools: simplify WI.FormattedContentBuilder

third_party/WebKit/Source/devtools/front_end/formatter_worker/FormattedContentBuilder.js

 // Copyright 2016 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
  * @param {string} indentString
  */
 WebInspector.FormattedContentBuilder = function(indentString)
 {
     this._lastOriginalPosition = 0;
 
     this._formattedContent = [];
     this._formattedContentLength = 0;
     this._lastFormattedPosition = 0;
 
     /** @type {!{original: !Array.<number>, formatted: !Array.<number>}} */
     this._mapping = { original: [0], formatted: [0] };
 
-    this._lineNumber = 0;
     this._nestingLevel = 0;
     this._indentString = indentString;
     /** @type {!Map<number, string>} */
     this._cachedIndents = new Map();
 
     this._newLines = 0;
     this._softSpace = false;
     this._hardSpaces = 0;
 }
 
 WebInspector.FormattedContentBuilder.prototype = {
     /**
      * @param {string} token
-     * @param {number} startPosition
-     * @param {number} startLine
-     * @param {number} endLine
+     * @param {number} offset
      */
-    addToken: function(token, startPosition, startLine, endLine)
+    addToken: function(token, offset)
     {
-        if (this._lineNumber < startLine)
-            this._newLines = Math.max(this._newLines, startLine - this._lineNumber);
-
         var last = this._formattedContent.peekLast();
         if (last && /\w/.test(last[last.length - 1]) && /\w/.test(token))
             this.addSoftSpace();
 
         this._appendFormatting();
 
         // Insert token.
-        this._addMappingIfNeeded(startPosition);
+        this._addMappingIfNeeded(offset);
         this._addText(token);
-        this._lineNumber = endLine;
     },
 
     addSoftSpace: function()
     {
         if (!this._hardSpaces)
             this._softSpace = true;
     },
 
     addHardSpace: function()
     {
@@ skipping 92 matching lines @@
     {
         if (originalPosition - this._lastOriginalPosition === this._formattedContentLength - this._lastFormattedPosition)
             return;
         this._mapping.original.push(originalPosition);
         this._lastOriginalPosition = originalPosition;
         this._mapping.formatted.push(this._formattedContentLength);
         this._lastFormattedPosition = this._formattedContentLength;
     }
 }