Roll PDFium to bring in the following changes:

Roll PDFium to bring in the following changes:

615082d  Remove OpenJPEG header generator binary from PDFium build.
f3823b2  Add embedder test for fix to bug_452455.

Committed: https://crrev.com/90e6cbfeacc6de7d0ebc4c68dced8a4c276715db
Cr-Commit-Position: refs/heads/master@{#314380}

[jam, 2015-02-03 17:17:55]

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

[jam, 2015-02-03 17:18:03]

The CQ bit was checked by jam@chromium.org

[commit-bot: I haz the power, 2015-02-03 17:18:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/899593003/1

[Tom Sepez, 2015-02-03 17:19:31]

lgtm

[commit-bot: I haz the power, 2015-02-03 19:19:57]

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

[commit-bot: I haz the power, 2015-02-03 19:19:58]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[commit-bot: I haz the power, 2015-02-03 19:20:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-03 19:24:07]

Patchset 1 (id:??) landed as
https://crrev.com/90e6cbfeacc6de7d0ebc4c68dced8a4c276715db
Cr-Commit-Position: refs/heads/master@{#314380}