[fsp] Cleanup handling errors for operation requests.

chrome/browser/chromeos/file_system_provider/request_manager.h

Index: chrome/browser/chromeos/file_system_provider/request_manager.h
diff --git a/chrome/browser/chromeos/file_system_provider/request_manager.h b/chrome/browser/chromeos/file_system_provider/request_manager.h
index c1cb5d5553944e0b1ce78d6644d29c636e4a300c..4518bfa76e283d23ab84d3babf5ebbc636a20d79 100644
--- a/chrome/browser/chromeos/file_system_provider/request_manager.h
+++ b/chrome/browser/chromeos/file_system_provider/request_manager.h
@@ -59,7 +59,9 @@ class RequestManager {
     // Error callback invoked by the providing extension in response to
     // Execute(). It can be called at most once. It can be also called if the
     // request is aborted due to a timeout.
-    virtual void OnError(int request_id, base::File::Error error) = 0;
+    virtual void OnError(int request_id,
+                         scoped_ptr<RequestValue> result,
+                         base::File::Error error) = 0;
   };
 
   // Observes activities in the request manager.
@@ -103,7 +105,9 @@ class RequestManager {
 
   // Handles error response for the |request_id|. If handling the error fails,
   // returns false. Always disposes the request.
-  bool RejectRequest(int request_id, base::File::Error error);
+  bool RejectRequest(int request_id,
+                     scoped_ptr<RequestValue> response,
+                     base::File::Error error);
 
   // Sets a custom timeout for tests. The new timeout value will be applied to
   // new requests