Blob support for IDB [Blink]

Source/core/fileapi/File.cpp

Index: Source/core/fileapi/File.cpp
diff --git a/Source/core/fileapi/File.cpp b/Source/core/fileapi/File.cpp
index 684216160e44ee501cdacc56b3981e91449974fa..d0fef2dfd6ce793dbcd60602c5b8c9320f8d759c 100644
--- a/Source/core/fileapi/File.cpp
+++ b/Source/core/fileapi/File.cpp
@@ -114,6 +114,16 @@ File::File(const String& path, const String& name, ContentTypeLookupPolicy polic
     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)