Roll PDFium

Roll PDFium

This brings in:
f650510  Fix build after previous commit.
217ecf3  Simplify PDFium by removing code that's not used in the open source repo.
2399550  m_pColorSpace can not be NULL for image object with DCTDecode filter
8695172  Do not do strict check of BitsPerComponent for RunLengthDecode filter
381b911  Lab colorspace needs to be 3 component
ca5d769  Trailer should be a dictionary object
4429eaa  Replace manual/error-prone/hard-to-verify arraysize calculations with safe FX_ArraySize macro.
b69da0b  Getting rid of more (FX_LPCWSTR) casts and fixing two bugs revealed by this.
4b87f7b  Cleanup: Remove an unused function.
df76a19  Add a missing 'using' keyword in big integer library
91dd8c7  Modify big integer library
44047c3  Remove unnecessary files in third_party/bigint
7504b3d  Initial check in of big integer library, v2010.04.30
4643533  Update to openjpeg r2944

Committed: https://crrev.com/3df5f766110941db077a2c8281e8107dc67834ed
Cr-Commit-Position: refs/heads/master@{#308417}

[jam, 2014-12-13 04:54:11]

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

[Tom Sepez, 2014-12-15 19:25:40]

lgtm

[jam, 2014-12-15 20:11:05]

The CQ bit was checked by jam@chromium.org

[commit-bot: I haz the power, 2014-12-15 20:12:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/803733002/60001

[commit-bot: I haz the power, 2014-12-15 21:13:20]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2014-12-15 21:14:08]

Patchset 4 (id:??) landed as
https://crrev.com/3df5f766110941db077a2c8281e8107dc67834ed
Cr-Commit-Position: refs/heads/master@{#308417}