Rename OperationObserver to OperationDelegate

chrome/browser/chromeos/drive/file_system/create_file_operation.cc

Index: chrome/browser/chromeos/drive/file_system/create_file_operation.cc
diff --git a/chrome/browser/chromeos/drive/file_system/create_file_operation.cc b/chrome/browser/chromeos/drive/file_system/create_file_operation.cc
index f60533101efcbf9994754ee8287e369956761bb9..4bc33af6e4bb620cc4810923c388575e80ba18fc 100644
--- a/chrome/browser/chromeos/drive/file_system/create_file_operation.cc
+++ b/chrome/browser/chromeos/drive/file_system/create_file_operation.cc
@@ -9,7 +9,7 @@
 #include "base/file_util.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_change.h"
-#include "chrome/browser/chromeos/drive/file_system/operation_observer.h"
+#include "chrome/browser/chromeos/drive/file_system/operation_delegate.h"
 #include "chrome/browser/chromeos/drive/resource_metadata.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/mime_util.h"
@@ -71,10 +71,10 @@ FileError UpdateLocalState(internal::ResourceMetadata* metadata,
 
 CreateFileOperation::CreateFileOperation(
     base::SequencedTaskRunner* blocking_task_runner,
-    OperationObserver* observer,
+    OperationDelegate* delegate,
     internal::ResourceMetadata* metadata)
     : blocking_task_runner_(blocking_task_runner),
-      observer_(observer),
+      delegate_(delegate),
       metadata_(metadata),
       weak_ptr_factory_(this) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
@@ -126,12 +126,12 @@ void CreateFileOperation::CreateFileAfterUpdateLocalState(
   } else if (error == FILE_ERROR_OK) {
     DCHECK(!entry->file_info().is_directory());
 
-    // Notify observer if the file was newly created.
+    // Notify delegate if the file was newly created.
     FileChange changed_file;
     changed_file.Update(
         file_path, FileChange::FILE_TYPE_FILE, FileChange::ADD_OR_UPDATE);
-    observer_->OnFileChangedByOperation(changed_file);
-    observer_->OnEntryUpdatedByOperation(entry->local_id());
+    delegate_->OnFileChangedByOperation(changed_file);
+    delegate_->OnEntryUpdatedByOperation(entry->local_id());
   }
   callback.Run(error);
 }