Update low-end definition for 512MB devices.

Update low-end definition for 512MB devices.

Devices that report exactly 512MB physical memory should be
categorized as low-end devices. This conforms with documentation.

BUG=515177
Committed: https://crrev.com/8b98057eaa184be84ae394dc949baaaa4a147471
Cr-Commit-Position: refs/heads/master@{#340988}

[Peter Wen, 2015-07-29 20:04:12]

wnwen@chromium.org changed reviewers:
+ nyquist@chromium.org

[Peter Wen, 2015-07-29 20:04:12]

Hi Tommy,

This CL updates the implementation of SysUtils.isLowEndDevices() to match our
definition of svelte and the comments.

Thanks, 

Peter

[nyquist, 2015-07-29 20:09:58]

The CQ bit was checked by nyquist@chromium.org

[nyquist, 2015-07-29 20:09:58]

lgtm

[commit-bot: I haz the power, 2015-07-29 20:10:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1261373002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1261373002/1

[commit-bot: I haz the power, 2015-07-29 21:22:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-29 21:23:46]

Patchset 1 (id:??) landed as
https://crrev.com/8b98057eaa184be84ae394dc949baaaa4a147471
Cr-Commit-Position: refs/heads/master@{#340988}