DevTools: use shorthand syntax in interface definitions.

third_party/WebKit/Source/devtools/front_end/sources/ScriptFormatter.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 122 matching lines @@
  * @interface
  */
 Sources.FormatterSourceMapping = function() {};
 
 Sources.FormatterSourceMapping.prototype = {
   /**
    * @param {number} lineNumber
    * @param {number=} columnNumber
    * @return {!Array.<number>}
    */
-  originalToFormatted: function(lineNumber, columnNumber) {},
+  originalToFormatted(lineNumber, columnNumber) {},
 
   /**
    * @param {number} lineNumber
    * @param {number=} columnNumber
    * @return {!Array.<number>}
    */
-  formattedToOriginal: function(lineNumber, columnNumber) {}
+  formattedToOriginal(lineNumber, columnNumber) {}
 };
 
 /**
  * @implements {Sources.FormatterSourceMapping}
  * @unrestricted
  */
 Sources.IdentityFormatterSourceMapping = class {
   /**
    * @override
    * @param {number} lineNumber
@@ skipping 65 matching lines @@
    * @return {number}
    */
   _convertPosition(positions1, positions2, position) {
     var index = positions1.upperBound(position) - 1;
     var convertedPosition = positions2[index] + position - positions1[index];
     if (index < positions2.length - 1 && convertedPosition > positions2[index + 1])
       convertedPosition = positions2[index + 1];
     return convertedPosition;
   }
 };