Fix webkitGetEntry for non-native files.

third_party/WebKit/Source/modules/filesystem/DraggedIsolatedFileSystemImpl.h

 /*
  * Copyright (C) 2012 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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DraggedIsolatedFileSystemImpl_h
 #define DraggedIsolatedFileSystemImpl_h
 
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DraggedIsolatedFileSystem.h"
 #include "platform/heap/Handle.h"
+#include "platform/heap/HeapAllocator.h"
 #include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class DOMFileSystem;
 
 class DraggedIsolatedFileSystemImpl final
     : public GarbageCollectedFinalized<DraggedIsolatedFileSystemImpl>,
       public DraggedIsolatedFileSystem,
       public Supplement<DataObject> {
   USING_GARBAGE_COLLECTED_MIXIN(DraggedIsolatedFileSystemImpl);
 
  public:
-  static DraggedIsolatedFileSystemImpl* create(DataObject& host,
-                                               const String& filesystemId) {
-    return new DraggedIsolatedFileSystemImpl(host, filesystemId);
-  }
-
-  static DOMFileSystem* getDOMFileSystem(DataObject* host, ExecutionContext*);
+  static DOMFileSystem* getDOMFileSystem(DataObject* host,
+                                         ExecutionContext*,
+                                         const DataObjectItem&);
 
   static const char* supplementName();
   static DraggedIsolatedFileSystemImpl* from(DataObject*);
 
   DECLARE_TRACE();
 
-  static void prepareForDataObject(DataObject*, const String& filesystemId);
+  static void prepareForDataObject(DataObject*);
 
  private:
-  DraggedIsolatedFileSystemImpl(DataObject& host, const String& filesystemId);
+  DraggedIsolatedFileSystemImpl() = default;
 
-  Member<DOMFileSystem> m_filesystem;
+  HeapHashMap<String, Member<DOMFileSystem>> m_filesystems;
 };
 
 }  // namespace blink
 
 #endif  // DraggedIsolatedFileSystemImpl_h