Merge to XFA: Split up JBig2_GeneralDecoder.cpp.

TBR=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1359233002 .

(cherry picked from commit 630a28442364f03c1d3d9b48873da42755e1fddf)

Review URL: https://codereview.chromium.org/1364083004 .
24 files changed