Move files from zip_archiver/unpacker/ to zip_archiver/.

ui/file_manager/zip_archiver/unpacker/js/background.js

-// Copyright 2014 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.
-
-'use strict';
-
-// Event called on opening a file with the extension or mime type
-// declared in the manifest file.
-chrome.app.runtime.onLaunched.addListener(unpacker.app.onLaunched);
-
-// Save the state before suspending the event page, so we can resume it
-// once new events arrive.
-chrome.runtime.onSuspend.addListener(unpacker.app.onSuspend);
-
-chrome.fileSystemProvider.onUnmountRequested.addListener(
-    unpacker.app.onUnmountRequested);
-chrome.fileSystemProvider.onGetMetadataRequested.addListener(
-    unpacker.app.onGetMetadataRequested);
-chrome.fileSystemProvider.onReadDirectoryRequested.addListener(
-    unpacker.app.onReadDirectoryRequested);
-chrome.fileSystemProvider.onOpenFileRequested.addListener(
-    unpacker.app.onOpenFileRequested);
-chrome.fileSystemProvider.onCloseFileRequested.addListener(
-    unpacker.app.onCloseFileRequested);
-chrome.fileSystemProvider.onReadFileRequested.addListener(
-    unpacker.app.onReadFileRequested);
-
-// Load the PNaCl module.
-unpacker.app.loadNaclModule('module.nmf', 'application/x-pnacl');