commit 115dc0aa5eba7ec2e2a0164a841b78783dd2672e
author Koji Ishii <kojii@chromium.org> Mon Nov 12 07:14:27 2018
committer Commit Bot <commit-bot@chromium.org> Mon Nov 12 07:14:27 2018
tree 51a58038b7122c4c7d2f2a33fb621d3bb9d6d1d4
parent 48fbdf22b0497ee4509cf8151c83ef8deb4d7181

[LayoutNG] NGPhysicalFragment size reduction and warning

This patch reduces the size of NGPhysicalFragment by:
* NGPhysicalFragment by pointer, by removing virtual
  functions.
* NGPhysicalTextFragment by a word, by moving flags to
  NGPhysicalFragment.
* NGPhysicalTextFragment::EndEffect() is no longer used
  and that removed.

Also adds size warning to all subclasses.

Currently, NGPhysicalFragment has 13 bits in flags, plus
5 bits for its subclasses, 18 bits total.

Bug: 591099
Change-Id: I189f691c1976da1eb1223ac9c782e02567038310
Reviewed-on: https://chromium-review.googlesource.com/c/1329703
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607159}