Blob support for IDB [Blink]

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 96 matching lines @@
     : Blob(BlobDataHandle::create(createBlobDataForFileWithName(path, name, policy), -1))
     , m_hasBackingFile(true)
     , m_path(path)
     , m_name(name)
     , m_snapshotSize(-1)
     , m_snapshotModificationTime(invalidFileTime())
 {
     ScriptWrappable::init(this);
 }
 
+File::File(const String& path, const String& name, PassRefPtr<BlobDataHandle> blobDataHandle, double lastModified, long long size)
+    : Blob(blobDataHandle)
+    , m_path(path)
+    , m_name(name)
+    , m_snapshotSize(size)
+    , m_snapshotModificationTime(lastModified)
+{
+    ScriptWrappable::init(this);
+}
+
 File::File(const String& path, PassRefPtr<BlobDataHandle> blobDataHandle)
     : Blob(blobDataHandle)
     , m_hasBackingFile(true)
     , m_path(path)
     , m_name(blink::Platform::current()->fileUtilities()->baseName(path))
     , m_snapshotSize(-1)
     , m_snapshotModificationTime(invalidFileTime())
 {
     ScriptWrappable::init(this);
     // FIXME: File object serialization/deserialization does not include
@@ skipping 72 matching lines @@
         snapshotSize = 0;
         snapshotModificationTime = invalidFileTime();
         return;
     }
 
     snapshotSize = metadata.length;
     snapshotModificationTime = metadata.modificationTime;
 }
 
 } // namespace WebCore