tree 88242008a95c42b61c606a1ad1519f3ca8982a20
parent e1ea608510873331b52131330bff352c6d6e4ae7
author Lei Zhang <thestig@chromium.org> 1542237178 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1542237178 +0000

Avoid writing out empty streams in CPDF_Stream::WriteTo().

Do not call CFX_FileBufferArchive::WriteBlock() with no data to write
out to avoid an ASSERT() failure. Although
CFX_FileBufferArchive::WriteBlock() can handle no data just fine, it is
an IFX_WriteStream::WriteBlock() implementation and not all
IFX_WriteStream::WriteBlock() implementations can handle no data.

BUG=chromium:905142

Change-Id: Icef8460443a9363526679261aac0c1ef74bccec4
Reviewed-on: https://pdfium-review.googlesource.com/c/45531
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>