Verify precision length before converting to string.

Verify precision length before converting to string.

This CL updates the CalculateString method to make sure the number of digits
of precision is valid before doing the stringstream conversion.

BUG=chromium:673336
Review-Url: https://codereview.chromium.org/2572543004
Committed: https://pdfium.googlesource.com/pdfium/+/992ecf7c189e5cabf43e5ad862511cf63d030966

[dsinclair, 2016-12-13 21:28:18]

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

[commit-bot: I haz the power, 2016-12-13 21:28:22]

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

[dsinclair, 2016-12-13 21:28:29]

dsinclair@chromium.org changed reviewers:
+ tsepez@chromium.org, weili@chromium.org

[dsinclair, 2016-12-13 21:28:29]

PTAL.

[Tom Sepez, 2016-12-13 21:30:17]

lgtm

[Tom Sepez, 2016-12-13 21:31:01]

On 2016/12/13 21:30:17, Tom Sepez wrote:
> lgtm

I think there's also a bug upstream on this?

[commit-bot: I haz the power, 2016-12-13 21:41:27]

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

[commit-bot: I haz the power, 2016-12-13 21:41:27]

Dry run: This issue passed the CQ dry run.

[dsinclair, 2016-12-14 13:45:26]

On 2016/12/13 21:31:01, Tom Sepez wrote:
> On 2016/12/13 21:30:17, Tom Sepez wrote:
> > lgtm
> 
> I think there's also a bug upstream on this?

Upstream where, the C++ library? Or in Chromium?

[dsinclair, 2016-12-14 13:45:31]

The CQ bit was checked by dsinclair@chromium.org

[commit-bot: I haz the power, 2016-12-14 13:45:42]

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, 2016-12-14 13:45:57]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481723131511910, "parent_rev":
"974b4a6c4bceb50bbe5bf316e9e273b62eaeceac", "commit_rev":
"992ecf7c189e5cabf43e5ad862511cf63d030966"}

[commit-bot: I haz the power, 2016-12-14 13:46:01]

Description was changed from

==========
Verify precision length before converting to string.

This CL updates the CalculateString method to make sure the number of digits
of precision is valid before doing the stringstream conversion.

BUG=chromium:673336
==========

to

==========
Verify precision length before converting to string.

This CL updates the CalculateString method to make sure the number of digits
of precision is valid before doing the stringstream conversion.

BUG=chromium:673336

Review-Url: https://codereview.chromium.org/2572543004
Committed:
https://pdfium.googlesource.com/pdfium/+/992ecf7c189e5cabf43e5ad862511cf63d03...
==========

[commit-bot: I haz the power, 2016-12-14 13:46:01]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/992ecf7c189e5cabf43e5ad862511cf63d03...