[Cleanup] Files.app: Misc style fixes in Javascript code.

chrome/browser/resources/file_manager/js/metadata/byte_reader.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.
 
+/**
+ * @constructor
+ * @param {ArrayBuffer} arrayBuffer  //TODO(JSDOC).
+ * @param {number=} opt_offset  //TODO(JSDOC).
+ * @param {number=} opt_length  //TODO(JSDOC).
+ */
 function ByteReader(arrayBuffer, opt_offset, opt_length) {
   opt_offset = opt_offset || 0;
   opt_length = opt_length || (arrayBuffer.byteLength - opt_offset);
   this.view_ = new DataView(arrayBuffer, opt_offset, opt_length);
   this.pos_ = 0;
   this.seekStack_ = [];
   this.setByteOrder(ByteReader.BIG_ENDIAN);
 }
 
-// Static const and methods.
+// Static constants and methods.
 
 /**
  * Intel, 0x1234 is [0x34, 0x12]
  * @const
  * @type {number}
  */
 ByteReader.LITTLE_ENDIAN = 0;
 /**
  * Motorola, 0x1234 is [0x12, 0x34]
  * @const
@@ skipping 493 matching lines @@
   this.seek(this.seekStack_.pop());
 };
 
 /**
  * Return the current read position.
  * @return {number}  //TODO(JSDOC).
  */
 ByteReader.prototype.tell = function() {
   return this.pos_;
 };