Revert "Gallery: use native header."

ui/file_manager/integration_tests/gallery/open_image_files.js

 // Copyright 2014 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.
 
 'use strict';
 
 /**
  * Runs a test to open a single image.
  *
  * @param {string} testVolumeName Test volume name passed to the addEntries
  *     function. Either 'drive' or 'local'.
  * @param {VolumeManagerCommon.VolumeType} volumeType Volume type.
  * @return {Promise} Promise to be fulfilled with on success.
  */
 function openSingleImage(testVolumeName, volumeType) {
   var launchedPromise = launch(testVolumeName, volumeType, [ENTRIES.desktop]);
   return launchedPromise.then(function(args) {
     var WIDTH = 880;
-    var HEIGHT = 603; /* Inner height 570px + native header 33px. */
+    var HEIGHT = 570;
     var appId = args.appId;
     var resizedWindowPromise = gallery.callRemoteTestUtil(
         'resizeWindow', appId, [WIDTH, HEIGHT]
     ).then(function() {
       return repeatUntil(function() {
         return gallery.callRemoteTestUtil('getWindows', null, []
         ).then(function(windows) {
           var bounds = windows[appId];
           if (!bounds)
             return pending('Window is not ready yet.');
@@ skipping 83 matching lines @@
   return openMultipleImages('local', 'downloads');
 };
 
 /**
  * The openMultiImages test for Google Drive.
  * @return {Promise} Promise to be fulfilled with on success.
  */
 testcase.openMultipleImagesOnDrive = function() {
   return openMultipleImages('drive', 'drive');
 };