Relax a check in CPDF_HintTables.

Relax a check in CPDF_HintTables.

CPDF_HintTables::ReadSharedObjHintTable() unnecessarily constraints
a FX_FILESIZE value to an int32_t. Relax this check, since the result
will be stored in |m_szSharedObjOffsetArray| which is of FX_FILESIZE.
Bad values in |m_szSharedObjOffsetArray| will still cause hint table
loading to eventually fail.

BUG=635565
Committed: https://pdfium.googlesource.com/pdfium/+/c18ffca5a35ab4b2218fadcca4006b3ea09e7875

[Lei Zhang, 2016-08-10 23:31:33]

The CQ bit was checked by thestig@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-10 23:31:36]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Lei Zhang, 2016-08-11 00:07:31]

The CQ bit was checked by thestig@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-11 00:07:39]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Lei Zhang, 2016-08-11 00:13:22]

thestig@chromium.org changed reviewers:
+ tsepez@chromium.org

[commit-bot: I haz the power, 2016-08-11 01:55:03]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-08-11 01:55:03]

Dry run: This issue passed the CQ dry run.

[Tom Sepez, 2016-08-11 16:39:01]

lgtm

[Tom Sepez, 2016-08-11 16:39:05]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2016-08-11 16:39:14]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-11 16:39:32]

Description was changed from

==========
Relax a check in CPDF_HintTables.

CPDF_HintTables::ReadSharedObjHintTable() unnecessarily constraints
a FX_FILESIZE value to an int32_t. Relax this check, since the result
will be stored in |m_szSharedObjOffsetArray| which is of FX_FILESIZE.
Bad values in |m_szSharedObjOffsetArray| will still cause hint table
loading to eventually fail.

BUG=635565
==========

to

==========
Relax a check in CPDF_HintTables.

CPDF_HintTables::ReadSharedObjHintTable() unnecessarily constraints
a FX_FILESIZE value to an int32_t. Relax this check, since the result
will be stored in |m_szSharedObjOffsetArray| which is of FX_FILESIZE.
Bad values in |m_szSharedObjOffsetArray| will still cause hint table
loading to eventually fail.

BUG=635565

Committed:
https://pdfium.googlesource.com/pdfium/+/c18ffca5a35ab4b2218fadcca4006b3ea09e...
==========

[commit-bot: I haz the power, 2016-08-11 16:39:33]

Committed patchset #2 (id:20001) as
https://pdfium.googlesource.com/pdfium/+/c18ffca5a35ab4b2218fadcca4006b3ea09e...