tree 9a13115d5000bf969b0520789c96fe74595f3b32
parent 908d34cfe9d97a0b1dcfc36db6449e3eece0cba6
author Lei Zhang <thestig@chromium.org> 1663390572 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1663390572 +0000

Explicitly allow IFX_WriteStream::WriteBlock() calls with size of 0.

Make it clear that the interface allows this. Fix implementations to be
consistent with the interface, and remove a few checks that skipped
WriteBlock() calls because the size is 0.

At a test case to make sure CFX_MemoryStream::WriteBlock() works as
expected.

Also consistently not return false in WriteBlock() implementation when
the data pointer is null.

Change-Id: I4962f56b66c31c53339feb120f5a33d440fa72d7
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/98090
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>