Files.app: Provide detailed change information on onDirectoryChanged event

chrome/browser/chromeos/drive/file_system/create_directory_operation.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
 
 namespace base {
 class FilePath;
 class SequencedTaskRunner;
 }  // namespace base
 
 namespace drive {
 
+class FileChange;
 class ResourceEntry;
 
 namespace internal {
 class ResourceMetadata;
 }  // namespace internal
 
 namespace file_system {
 
 class OperationObserver;
 
@@ skipping 17 matching lines @@
   void CreateDirectory(const base::FilePath& directory_path,
                        bool is_exclusive,
                        bool is_recursive,
                        const FileOperationCallback& callback);
 
  private:
   // Part of CreateDirectory(). Called after UpdateLocalState().
   void CreateDirectoryAfterUpdateLocalState(
       const FileOperationCallback& callback,
       const std::set<std::string>* updated_local_ids,
-      const std::set<base::FilePath>* changed_directories,
+      const FileChange* changed_directories,
       FileError error);
 
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
   OperationObserver* observer_;
   internal::ResourceMetadata* metadata_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate the weak pointers before any other members are destroyed.
   base::WeakPtrFactory<CreateDirectoryOperation> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(CreateDirectoryOperation);
 };
 
 }  // namespace file_system
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_