Rename OperationObserver to OperationDelegate

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

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_OPEN_FILE_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_OPEN_FILE_OPERATION_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 16 matching lines @@
 
 namespace internal {
 class ResourceMetadata;
 class FileCache;
 }  // namespace internal
 
 namespace file_system {
 
 class CreateFileOperation;
 class DownloadOperation;
-class OperationObserver;
+class OperationDelegate;
 
 class OpenFileOperation {
  public:
   OpenFileOperation(base::SequencedTaskRunner* blocking_task_runner,
-                    OperationObserver* observer,
+                    OperationDelegate* delegate,
                     JobScheduler* scheduler,
                     internal::ResourceMetadata* metadata,
                     internal::FileCache* cache,
                     const base::FilePath& temporary_file_directory);
   ~OpenFileOperation();
 
   // Opens the file at |file_path|.
   // If the file is not actually downloaded, this method starts
   // to download it to the cache, and then runs |callback| upon the
   // completion with the path to the local cache file.
@@ skipping 24 matching lines @@
       const std::string& local_id,
       const OpenFileCallback& callback,
       scoped_ptr<base::ScopedClosureRunner>* file_closer,
       FileError error);
 
   // Closes the file with |local_id|.
   void CloseFile(const std::string& local_id,
                  scoped_ptr<base::ScopedClosureRunner> file_closer);
 
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-  OperationObserver* observer_;
+  OperationDelegate* delegate_;
   internal::FileCache* cache_;
 
   scoped_ptr<CreateFileOperation> create_file_operation_;
   scoped_ptr<DownloadOperation> download_operation_;
 
   // The map from local id for an opened file to the number how many times
   // the file is opened.
   std::map<std::string, int> open_files_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<OpenFileOperation> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(OpenFileOperation);
 };
 
 }  // namespace file_system
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_OPEN_FILE_OPERATION_H_