Pass the selected non-native file information from the browser to FileInputType.

Source/core/fileapi/File.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 278 matching lines @@
     double modificationTime;
     captureSnapshot(size, modificationTime);
     if (!m_fileSystemURL.isEmpty()) {
         blobData.appendFileSystemURL(m_fileSystemURL, 0, size, modificationTime);
         return;
     }
     ASSERT(!m_path.isEmpty());
     blobData.appendFile(m_path, 0, size, modificationTime);
 }
 
+bool File::hasSameSource(const File& other) const
+{
+    if (m_hasBackingFile != other.m_hasBackingFile)
+        return false;
+
+    if (m_hasBackingFile)
+        return m_path == other.m_path;
+
+    if (m_fileSystemURL.isEmpty() != other.m_fileSystemURL.isEmpty())
+        return false;
+
+    if (!m_fileSystemURL.isEmpty())
+        return m_fileSystemURL == other.m_fileSystemURL;
+
+    return uuid() == other.uuid();
+}
+
 } // namespace blink