Merge to XFA: Fix a malloc/delete mismatch introduced in commit 8a9ce57.

Just get rid of the malloc altogether and use CJBig2_List instead.

BUG=540873
TBR=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1394933002 .

(cherry picked from commit 06f255ca4040f3d73cf09f1dbd63a3b167f6a4c1)

Review URL: https://codereview.chromium.org/1400663003 .
2 files changed