tree a95d08b87db358ed3d310fc1c8c7aa1f0ade294a
parent 720ffea6a75c11dc67ec51fa986c6b74f8ede747
author Lei Zhang <thestig@chromium.org> 1705973095 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1705973095 +0000

Ensure CPDF_Stream always has a dictionary

Now that CPDF_Stream is never uninitialized, tweak its semantics to
guarantee its `dict_` member is never null and CHECK() that is the case.
Then remove conditionals that check if `dict_` is null, and update known
CPDF_Stream users to avoid passing in null dictionaries.

Change-Id: I3446698401cbc29c7100a18084997e02e8030de4
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/115692
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>