Fix copy number counting in Files.app.

chrome/browser/resources/file_manager/background/js/file_operation_manager.js

 // Copyright 2013 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';
 
 /**
  * Utilities for FileOperationManager.
  */
 var fileOperationUtil = {};
@@ skipping 618 matching lines @@
         if (this.cancelRequested_) {
           errorCallback(new FileOperationManager.Error(
               util.FileOperationErrorType.FILESYSTEM_ERROR,
               util.createDOMError(util.FileError.ABORT_ERR)));
           return;
         }
         progressCallback();
         this.processEntry_(
             entry, this.targetDirEntry,
             function(sourceEntry, destinationEntry) {
               // Finalize the entry's progress state.

[hirono, 2014/02/14 10:56:39]

Could you please remove line 639 ~ 642 while you are here. This is not used.

[kinaba, 2014/02/19 00:34:35]

Done.

               var sourceEntryURL = sourceEntry.toURL();
               var processedEntry =
                   this.processingEntries[index][sourceEntryURL];
 
-              // Update current source index.
-              this.processingSourceIndex_ = index + 1;
+              // Update processing bytes
               this.processedBytes = this.calcProcessedBytes_();

[hirono, 2014/02/14 10:56:39]

Could you please also move the line to the complete callback?

[kinaba, 2014/02/19 00:34:35]

Done.

 
               // The destination entry may be null, if the copied file got
               // deleted just after copying.
               if (destinationEntry) {
                 entryChangedCallback(
                     util.EntryChangedKind.CREATED, destinationEntry);
               }
             }.bind(this),
             function(sourceEntry, size) {
               var sourceEntryURL = sourceEntry.toURL();
               var processedEntry =
                   this.processingEntries[index][sourceEntryURL];
               if (processedEntry) {
                 this.processedBytes += size - processedEntry.processedBytes;
                 processedEntry.processedBytes = size;
                 progressCallback();
               }
             }.bind(this),
-            callback,
+            function() {
+              // Update current source index.
+              this.processingSourceIndex_ = index + 1;
+              callback();
+            }.bind(this),
             errorCallback);
       },
       function() {
         if (this.deleteAfterCopy) {
           deleteOriginals();
         } else {
           successCallback();
         }
       }.bind(this),
       this);
@@ skipping 669 matching lines @@
 
 /**
  * Generates new task ID.
  *
  * @return {string} New task ID.
  * @private
  */
 FileOperationManager.prototype.generateTaskId_ = function() {
   return 'file-operation-' + this.taskIdCounter_++;
 };