tree 215fae3dd4fe42787ea4cc2fa2a4d1e4cd587d76
parent 8793b4a071fad51a770b93838e0752505b020e43
author David Lattimore <dml@google.com> 1444339100 +1100
committer David Lattimore <dml@google.com> 1444339100 +1100

Various changes to JBig2 cache:
- Makes the cache be per-document
- Keys the cache on ObjNum and stream offset instead of keying on a pointer to the data (which can result in false cache hits).
- Makes it so the cache is only used for the globals stream.
- Reenable the cache.

R=thestig@chromium.org

BUG=pdfium:207

Review URL: https://codereview.chromium.org/1380243004 .