Move files from zip_archiver/unpacker/ to zip_archiver/.

ui/file_manager/zip_archiver/unpacker/js/compressor-foreground.js

-// Copyright 2017 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-window.onload = function() {
-  chrome.runtime.getBackgroundPage(function(backgroundPage) {
-
-    // Called from the background page. We need to place this function here
-    // because chrome.fileSystem.chooseEntry only works on forground page.
-    backgroundPage.unpacker.Compressor.prototype.createArchiveFileForeground_ =
-        function(compressorId) {
-          var compressor =
-              backgroundPage.unpacker.app.compressors[compressorId];
-          var suggestedName = compressor.archiveName_;
-          // Create an archive file.
-          chrome.fileSystem.chooseEntry(
-              {type: 'saveFile', suggestedName: suggestedName},
-              function(entry, fileEntries) {
-                if (!entry) {
-                  console.error('Failed to create an archive file.');
-                  compressor.onError_(compressor.compressorId_);
-                  return;
-                }
-
-                compressor.archiveFileEntry_ = entry;
-
-                compressor.sendCreateArchiveRequest_();
-              });
-        };
-
-    // Some compressors are waiting for this foreground page to be loaded.
-    backgroundPage.unpacker.Compressor.CompressorIdQueue.forEach(
-        function(compressorId) {
-          var compressor =
-              backgroundPage.unpacker.app.compressors[compressorId];
-          compressor.createArchiveFileForeground_(compressorId);
-        });
-  });
-};