commit 55e61f0ef4e5c8c34ac107deaadc9b4ffef3111b
author robertphillips <robertphillips@google.com> Sun Jun 29 15:08:31 2014 -0700
committer Commit bot <commit-bot@chromium.org> Sun Jun 29 15:08:31 2014 -0700
tree a4338959e2934648d4ef1793017c96a786bac632
parent d92f5b814d01c474a0fb52e32e10a997b2c9b5bf

Begin atlasing

This CL makes it possible for pulled-forward-layers to be atlased. It currently has a couple glaring limitations (which is why it is disabled):

1) the atlased layers cannot be purged nor aged out
2) the texture backing the atlas is not pulled from (or returned to) the resource cache

#1 is on hold until we have a recycling rectanizer

A separate major limitation (the non-atlased layers aren't cached) is blocked until we can transmute entries in the resource cache from scratch to non-scratch while potentially preserving their contents.

R=bsalomon@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/354533004