[Cleanup] Files.app: Adds missing periods at the end of the descriptions.

chrome/browser/resources/file_manager/js/metadata/exif_parser.js

 // Copyright (c) 2012 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.
 
 var EXIF_MARK_SOI = 0xffd8;  // Start of image data.
 var EXIF_MARK_SOS = 0xffda;  // Start of "stream" (the actual image data).
 var EXIF_MARK_SOF = 0xffc0;  // Start of "frame"
 var EXIF_MARK_EXIF = 0xffe1;  // Start of exif block.
 
 var EXIF_ALIGN_LITTLE = 0x4949;  // Indicates little endian exif data.
@@ skipping 335 matching lines @@
 //TODO(JSDOC)
 ExifParser.SCALEY = [1, 1, -1, -1, -1, 1, 1, -1];
 
 //TODO(JSDOC)
 ExifParser.ROTATE90 = [0, 0, 0, 0, 1, 1, 1, 1];
 
 /**
  * Transform exif-encoded orientation into a set of parameters compatible with
  * CSS and canvas transforms (scaleX, scaleY, rotation).
  *
- * @param {Object} ifd exif property dictionary (image or thumbnail)
- * @return {Object} //TODO(JSDOC)
+ * @param {Object} ifd exif property dictionary (image or thumbnail).
+ * @return {Object} //TODO(JSDOC).
  */
 ExifParser.prototype.parseOrientation = function(ifd) {
   if (ifd[EXIF_TAG_ORIENTATION]) {
     var index = (ifd[EXIF_TAG_ORIENTATION].value || 1) - 1;
     return {
       scaleX: ExifParser.SCALEX[index],
       scaleY: ExifParser.SCALEY[index],
       rotate90: ExifParser.ROTATE90[index]
     };
   }
   return null;
 };
 
 MetadataDispatcher.registerParserClass(ExifParser);