tree 47db9610a0a50d1a2d1633e82455877e19cbf9e1
parent e19ff219c47881212dff8be4a168dce2f60fdb13
author Lei Zhang <thestig@chromium.org> 1550688520 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1550688520 +0000

Fix data ownership in CPDF_ObjectStream.

Make CFX_ReadOnlyMemoryStream capable of holding onto data. Use it in
CPDF_ObjectStream to make the stream data refcounted, instead of letting
CPDF_ObjectStream have ownership.

Commit 0389ff1a incorrectly changed data ownership. Although
CPDF_ObjectStream does not hand out its |data_stream_| directly,
ParseObjectAtOffset() will use it with a local CPDF_SyntaxParser, and
the CPDF_SyntaxParser hands off the data stream to the returned object.

BUG=chromium:933212

Change-Id: I703735cfa7e2720af3008ec57158fd875d3a0723
Reviewed-on: https://pdfium-review.googlesource.com/c/50955
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>