Roll pdfium.

Roll pdfium.

This brings in:
5f8a503 Check m_nComponents when using JBIG2Decode
1d7dc1b Add m_pDocument in CPDF_Color and check if page date has been forced clear
49c41ac Tidy up opj_ callback functions in fx_codec_jpx_obj.cpp
9f810e7 Remove the GetValidBpc check in application callers and move it to where m_bpc is assigned.
d0c3650 Remove unused fields and stack locals.

TBR=thakis@chromium.org
TBR=inferno@chromium.org

Committed: https://crrev.com/702f8e51da4b25cbba661e3f81533f5dcfc53af2
Cr-Commit-Position: refs/heads/master@{#293167}

[Tom Sepez, 2014-09-02 23:14:35]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2014-09-02 23:15:37]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tsepez@chromium.org/535623003/1

[commit-bot: I haz the power, 2014-09-03 00:14:56]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_chromium_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[commit-bot: I haz the power, 2014-09-03 01:59:31]

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

[commit-bot: I haz the power, 2014-09-03 01:59:31]

Try jobs failed on following builders:
  win_chromium_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Tom Sepez, 2014-09-03 16:59:48]

The CQ bit was checked by tsepez@chromium.org

[commit-bot: I haz the power, 2014-09-03 17:00:59]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tsepez@chromium.org/535623003/1

[commit-bot: I haz the power, 2014-09-03 17:52:45]

Committed patchset #1 (id:1) as f2ecc93ff5166a82d32091a106469bda6bc891a4

[commit-bot: I haz the power, 2014-09-10 03:26:43]

Patchset 1 (id:??) landed as
https://crrev.com/702f8e51da4b25cbba661e3f81533f5dcfc53af2
Cr-Commit-Position: refs/heads/master@{#293167}