Merge to XFA: Loose checking for trailer's size field

Merge to XFA: Loose checking for trailer's size field

Although trailer's size value is required by spec, other readers such as
Acrobat or libpoppler can handle without it. Loose up the check to be
more tolerant.

BUG=pdfium:213
R=thestig@chromium.org
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1582193002 .

(cherry picked from commit 34291b900ad0472eef582215cfce0d942a40fd16)

Committed: https://pdfium.googlesource.com/pdfium/+/07fb4cf2caa9590402a1c610b9c9d2fb9976f752

[Wei Li, 2016-01-14 23:08:24]

clean

[Wei Li, 2016-01-14 23:14:36]

clean merge, TBR

[Lei Zhang, 2016-01-14 23:14:38]

lgtm

[Wei Li, 2016-01-14 23:15:21]

Description was changed from

==========
Merge to XFA: Loose checking for trailer's size field

Although trailer's size value is required by spec, other readers such as
Acrobat or libpoppler can handle without it. Loose up the check to be
more tolerant.

BUG=pdfium:213
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1582193002 .

(cherry picked from commit 34291b900ad0472eef582215cfce0d942a40fd16)
==========

to

==========
Merge to XFA: Loose checking for trailer's size field

Although trailer's size value is required by spec, other readers such as
Acrobat or libpoppler can handle without it. Loose up the check to be
more tolerant.

BUG=pdfium:213
R=thestig@chromium.org
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1582193002 .

(cherry picked from commit 34291b900ad0472eef582215cfce0d942a40fd16)

Committed:
https://pdfium.googlesource.com/pdfium/+/07fb4cf2caa9590402a1c610b9c9d2fb9976...
==========

[Wei Li, 2016-01-14 23:15:22]

Committed patchset #1 (id:1) manually as
07fb4cf2caa9590402a1c610b9c9d2fb9976f752 (presubmit successful).