Rename OperationObserver to OperationDelegate

chrome/browser/chromeos/drive/sync/entry_update_performer.h

Index: chrome/browser/chromeos/drive/sync/entry_update_performer.h
diff --git a/chrome/browser/chromeos/drive/sync/entry_update_performer.h b/chrome/browser/chromeos/drive/sync/entry_update_performer.h
index 2ad5a71138cb45090296367708ef24ca7e90ccdc..ade83092ab78793384451ec577c940d1309c09f9 100644
--- a/chrome/browser/chromeos/drive/sync/entry_update_performer.h
+++ b/chrome/browser/chromeos/drive/sync/entry_update_performer.h
@@ -29,7 +29,7 @@ class ResourceEntry;
 struct ClientContext;
 
 namespace file_system {
-class OperationObserver;
+class OperationDelegate;
 }  // namespace file_system
 
 namespace internal {
@@ -44,7 +44,7 @@ class ResourceMetadata;
 class EntryUpdatePerformer {
  public:
   EntryUpdatePerformer(base::SequencedTaskRunner* blocking_task_runner,
-                       file_system::OperationObserver* observer,
+                       file_system::OperationDelegate* delegate,
                        JobScheduler* scheduler,
                        ResourceMetadata* metadata,
                        FileCache* cache,
@@ -83,7 +83,7 @@ class EntryUpdatePerformer {
                               FileError error);
 
   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
-  file_system::OperationObserver* observer_;
+  file_system::OperationDelegate* delegate_;
   JobScheduler* scheduler_;
   ResourceMetadata* metadata_;
   FileCache* cache_;