Rename OperationObserver to OperationDelegate

chrome/browser/chromeos/drive/file_system/download_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_DOWNLOAD_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_DOWNLOAD_OPERATION_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
@@ skipping 16 matching lines @@
 class ResourceEntry;
 struct ClientContext;
 
 namespace internal {
 class FileCache;
 class ResourceMetadata;
 }  // namespace internal
 
 namespace file_system {
 
-class OperationObserver;
+class OperationDelegate;
 
 class DownloadOperation {
  public:
   DownloadOperation(base::SequencedTaskRunner* blocking_task_runner,
-                    OperationObserver* observer,
+                    OperationDelegate* delegate,
                     JobScheduler* scheduler,
                     internal::ResourceMetadata* metadata,
                     internal::FileCache* cache,
                     const base::FilePath& temporary_file_directory);
   ~DownloadOperation();
 
   // Ensures that the file content specified by |local_id| is locally
   // downloaded and returns a closure to cancel the task.
   // For hosted documents, this method may create a JSON file representing the
   // file.
@@ skipping 52 matching lines @@
       const base::FilePath& file_path,
       scoped_ptr<DownloadParams> params,
       scoped_ptr<ResourceEntry> entry_after_update,
       base::FilePath* cache_file_path,
       FileError error);
 
   // Cancels the job with |job_id| in the scheduler.
   void CancelJob(JobID job_id);
 
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-  OperationObserver* observer_;
+  OperationDelegate* delegate_;
   JobScheduler* scheduler_;
   internal::ResourceMetadata* metadata_;
   internal::FileCache* cache_;
   const base::FilePath temporary_file_directory_;
 
   // 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<DownloadOperation> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(DownloadOperation);
 };
 
 }  // namespace file_system
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_DOWNLOAD_OPERATION_H_