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

Source/core/fileapi/File.h

 /*
  * 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 117 matching lines @@
 
     // Returns the relative path of this file in the context of a directory selection.
     const String& webkitRelativePath() const { return m_relativePath; }
 
     // Note that this involves synchronous file operation. Think twice before calling this function.
     void captureSnapshot(long long& snapshotSize, double& snapshotModificationTime) const;
 
     // Returns true if this has a valid snapshot metadata (i.e. m_snapshotSize >= 0).
     bool hasValidSnapshotMetadata() const { return m_snapshotSize >= 0; }
 
+    // Returns true if the sources (file path, file system URL, or blob handler) of the file objects are same or not.
+    bool hasSameSource(const File& other) const;
+
 private:
     File(const String& path, ContentTypeLookupPolicy, UserVisibility);
     File(const String& path, const String& name, ContentTypeLookupPolicy, UserVisibility);
     File(const String& path, const String& name, const String& relativePath, UserVisibility, bool hasSnaphotData, uint64_t size, double lastModified, PassRefPtr<BlobDataHandle>);
     File(const String& name, double modificationTime, PassRefPtr<BlobDataHandle>);
     File(const String& name, const FileMetadata&, UserVisibility);
     File(const KURL& fileSystemURL, const FileMetadata&);
 
     void invalidateSnapshotMetadata() { m_snapshotSize = -1; }
 
@@ skipping 21 matching lines @@
     const double m_snapshotModificationTime;
 
     String m_relativePath;
 };
 
 DEFINE_TYPE_CASTS(File, Blob, blob, blob->isFile(), blob.isFile());
 
 } // namespace blink
 
 #endif // File_h