tree eada870de20d30356d8ba9dd06770aa31c630284
parent 797ca5cad52edde7c65da45a15216f20b1bfd8fd
author Dan Sinclair <dsinclair@chromium.org> 1497462814 -0400
committer Chromium commit bot <commit-bot@chromium.org> 1497463740 +0000

[Merge M60] Allow zero length streams when parsing.

It's possible to create a stream of length 0 in a PDF document.
Currently the code will early exit and return a nullptr. This causes
issues when you want to print the given PDF as the FPDF_ImportPages code
ends up only generating up to the zero length object.

This CL allows creating streams with length 0 and updates the PDF saving
code to output a blank stream.

TBR=thestig@chromium.org

Bug: chromium:732380
Change-Id: I44182ba4aaac7c51284b002ba01bbc34b6bcf9e0
Reviewed-on: https://pdfium-review.googlesource.com/6490
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
(cherry picked from commit 957480c17682008ae2a14723868fcdcab89b6577)
Reviewed-on: https://pdfium-review.googlesource.com/6557
Reviewed-by: dsinclair <dsinclair@chromium.org>