Mac: Use 512x512 tiles by default when on high DPI devices

Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268
Committed: https://crrev.com/75981c1f3c20313b0804bfced24d94440e59f9f3
Cr-Commit-Position: refs/heads/master@{#384598}

[ccameron, 2016-03-28 08:10:38]

Description was changed from

==========
Mac: Use 512x512 tiles by default when on high DPI devices

BUG=598268
==========

to

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on several benchmarks.

BUG=598268
==========

[ccameron, 2016-03-28 08:10:39]

ccameron@chromium.org changed reviewers:
+ enne@chromium.org

[ccameron, 2016-03-28 08:10:50]

Been meaning to do this for ages ...

[enne (OOO), 2016-03-28 17:34:52]

Which benchmarks? How much? How's this do on a blinking cursor style test?

[ccameron, 2016-03-29 18:14:43]

Description was changed from

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on several benchmarks.

BUG=598268
==========

to

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268
==========

[ccameron, 2016-03-29 18:16:09]

On 2016/03/28 17:34:52, enne wrote:
> Which benchmarks? How much? How's this do on a blinking cursor style test?

Scrolling benchmarks, and it's good for ~5% or so. This came up during data
gathering for Mac convergence. The fact that CrOS and Safari already do this
makes me feel that we should already be doing this.

[enne (OOO), 2016-03-29 18:40:05]

Thanks for the details. Partial raster is about to be turned back on, so that
should fix my worries with blinking cursors and large tiles.

lgtm

[ccameron, 2016-04-01 15:11:37]

Thanks!!

[ccameron, 2016-04-01 15:11:41]

The CQ bit was checked by ccameron@chromium.org

[commit-bot: I haz the power, 2016-04-01 15:11:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1838823002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1838823002/1

[commit-bot: I haz the power, 2016-04-01 16:11:55]

Description was changed from

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268
==========

to

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268
==========

[commit-bot: I haz the power, 2016-04-01 16:11:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-01 16:14:31]

Description was changed from

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268
==========

to

==========
Mac: Use 512x512 tiles by default when on high DPI devices

This reduces power consumption on scrolling benchmarks.

BUG=598268

Committed: https://crrev.com/75981c1f3c20313b0804bfced24d94440e59f9f3
Cr-Commit-Position: refs/heads/master@{#384598}
==========

[commit-bot: I haz the power, 2016-04-01 16:14:31]

Patchset 1 (id:??) landed as
https://crrev.com/75981c1f3c20313b0804bfced24d94440e59f9f3
Cr-Commit-Position: refs/heads/master@{#384598}