[Files.app] Split the JavaScript files into subdirectories: common, background, and foreground

chrome/browser/resources/file_manager/foreground/js/metadata/metadata_cache.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.
 
 'use strict';
 
 /**
  * MetadataCache is a map from url to an object containing properties.
  * Properties are divided by types, and all properties of one type are accessed
  * at once.
@@ skipping 846 matching lines @@
  */
 function ContentProvider() {
   MetadataProvider.call(this);
 
   // Pass all URLs to the metadata reader until we have a correct filter.
   this.urlFilter_ = /.*/;
 
   var path = document.location.pathname;
   var workerPath = document.location.origin +
       path.substring(0, path.lastIndexOf('/') + 1) +
-      'js/metadata/metadata_dispatcher.js';
+      'foreground/js/metadata/metadata_dispatcher.js';
 
   if (ContentProvider.USE_SHARED_WORKER) {
     this.dispatcher_ = new SharedWorker(workerPath).port;
     this.dispatcher_.start();
   } else {
     this.dispatcher_ = new Worker(workerPath);
   }
 
   this.dispatcher_.onmessage = this.onMessage_.bind(this);
   this.dispatcher_.postMessage({verb: 'init'});
@@ skipping 163 matching lines @@
 
 /**
  * Handles the 'log' message from the worker.
  * @param {Array.<*>} arglist Log arguments.
  * @private
  */
 ContentProvider.prototype.onLog_ = function(arglist) {
   if (MetadataCache.log)  // Avoid log spam by default.
     console.log.apply(console, ['metadata:'].concat(arglist));
 };