commit 359a15605f7907df8909b75dfac49dfd5d98f6ae
author shend <shend@chromium.org> Fri Jun 02 05:43:50 2017
committer Commit Bot <commit-bot@chromium.org> Fri Jun 02 05:44:08 2017
tree b623c4adc5fea077924d30a55b6cb7a21b9d4ebe
parent a1c3d7770142fdf164aa1024c00d7b12226df888

Generate enum/getters/setters/mappings for image-rendering.

Currently, the image-rendering property is a 'storage_only' field,
so it has no generated public getters/setters. This patch changes it to
a 'keyword' field so that its getters/setters can be generated as well.
We also generate the ImageRendering enum and use the generated
CSSValueID <-> ImageRendering mappings.

We also rename ImageRendering::kOptimizeContrast to
kWebkitOptimizeContrast to match the keywords.

Diff of generated files:
https://gist.github.com/51d00263e744ea52b3b8cc419f54314f/revisions

BUG=628043
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2922483004
Cr-Commit-Position: refs/heads/master@{#476585}