Remove FileError interface

third_party/WebKit/Source/modules/filesystem/DirectoryReader.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 49 matching lines @@
     Member<DirectoryReader> m_reader;
 };
 
 class DirectoryReader::ErrorCallbackHelper final : public ErrorCallback {
 public:
     explicit ErrorCallbackHelper(DirectoryReader* reader)
         : m_reader(reader)
     {
     }
 
-    void handleEvent(FileError* error) override
+    void handleEvent(DOMException* error) override
+    {
+        NOTREACHED();
+    }
+
+    void handleEvent(FileError::ErrorCode error) override
     {
         m_reader->onError(error);
     }
 
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         visitor->trace(m_reader);
         ErrorCallback::trace(visitor);
     }
 
@@ skipping 18 matching lines @@
         filesystem()->readDirectory(this, m_fullPath, new EntriesCallbackHelper(this), new ErrorCallbackHelper(this));
     }
 
     if (m_error) {
         filesystem()->scheduleCallback(errorCallback, m_error);
         return;
     }
 
     if (m_entriesCallback) {
         // Non-null m_entriesCallback means multiple readEntries() calls are made concurrently. We don't allow doing it.
-        filesystem()->scheduleCallback(errorCallback, FileError::create(FileError::INVALID_STATE_ERR));
+        filesystem()->scheduleCallback(errorCallback, FileError::INVALID_STATE_ERR);
         return;
     }
 
     if (!m_hasMoreEntries || !m_entries.isEmpty()) {
         filesystem()->scheduleCallback(entriesCallback, m_entries);
         m_entries.clear();
         return;
     }
 
     m_entriesCallback = entriesCallback;
     m_errorCallback = errorCallback;
 }
 
 void DirectoryReader::addEntries(const EntryHeapVector& entries)
 {
     m_entries.appendVector(entries);
     m_errorCallback = nullptr;
     if (m_entriesCallback) {
         EntriesCallback* entriesCallback = m_entriesCallback.release();
         EntryHeapVector entries;
         entries.swap(m_entries);
         entriesCallback->handleEvent(entries);
     }
 }
 
-void DirectoryReader::onError(FileError* error)
+void DirectoryReader::onError(FileError::ErrorCode error)
 {
     m_error = error;
     m_entriesCallback = nullptr;
     if (m_errorCallback) {
         ErrorCallback* errorCallback = m_errorCallback.release();
         errorCallback->handleEvent(error);
     }
 }
 
 DEFINE_TRACE(DirectoryReader)
 {
     visitor->trace(m_entries);
-    visitor->trace(m_error);
     visitor->trace(m_entriesCallback);
     visitor->trace(m_errorCallback);
     DirectoryReaderBase::trace(visitor);
 }
 
 } // namespace blink