Devtools Color: Sort and expand generated palette

Devtools Color: Sort and expand generated palette

This change sorts the generated palette by hue and expands the palette to
24 colors. This change reduces the preview palette size to fix a line
wrapping issue on Mac.

BUG=521228, 521139, 461320
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=200700

[samli, 2015-08-17 02:05:00]

samli@chromium.org changed reviewers:
+ pfeldman@chromium.org

[samli, 2015-08-17 02:05:01]

ptal

[pfeldman, 2015-08-17 18:49:59]

lgtm

[samli, 2015-08-17 23:46:21]

The CQ bit was checked by samli@chromium.org

[commit-bot: I haz the power, 2015-08-17 23:47:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1300513003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1300513003/1

[commit-bot: I haz the power, 2015-08-18 01:26:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-08-18 01:26:54]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[samli, 2015-08-18 04:04:08]

The CQ bit was checked by samli@chromium.org

[commit-bot: I haz the power, 2015-08-18 04:04:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1300513003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1300513003/1

[commit-bot: I haz the power, 2015-08-18 05:15:09]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=200700