tree 1c6c94fb35fb6a0bc16a165761b3340c97e0f4b5
parent 0efab9428fe9fe0a1af4f8eba9fabb78b1eee44a
author caryclark <caryclark@google.com> 1467209449 -0700
committer Commit bot <commit-bot@chromium.org> 1467209450 -0700

add local caching for skia draws

PDFium assumes the lowest common denominator
and draws many strings and paths that can
be accumulated.

Defer canvas->restore() calls until required
because the clip changed.

Defer text and path draws as long as subsequent
calls concatenate additional data.

Include debugging switch to allow disabling cache
at compile-time while bugs are shaken out.

Review-Url: https://codereview.chromium.org/2064753002