tree 0a38faf831cddea734b8a1f1a7b849157912aa80
parent 3e0fc64da064b8c4156daf53242b8eeb47830f64
author Raph Levien <raph@google.com> 1436482696 -0700
committer Raph Levien <raph@google.com> 1436488738 -0700

Add HyphenEdit to layout cache

We bypass the word layout cache for "complex" cases, which includes
things like OpenType features. We were counting a hyphen edit as such
a case, but the problem is that we measure a _lot_ of these when
doing layout with hyphenation.

This patch adds plumbing for hyphen edits to the layout cache, so
that word fragments with hyphens can be cached as well.

Bug: 22378829

Change-Id: Idba4df4faa14f48a5faccc8a7a7955a36c19ef27