Changed the Launcher shelf icon in ChromeOS.

Changed the Launcher shelf icon in ChromeOS.

Was a 9-square app grid; now a magnifying glass. This better represents
the new "Ares" launcher interface, which is focused on search. (The old
icon is still used if the --disable-experimental-app-list flag is
given.)

BUG=458353
TBR=oshima@chromium.org

Committed: https://crrev.com/4cadf30332cf12bdcdc5bfc70c9e9cd49d1ae8db
Cr-Commit-Position: refs/heads/master@{#316712}

[Matt Giuca, 2015-02-16 02:56:56]

mgiuca@chromium.org changed reviewers:
+ calamity@chromium.org, oshima@chromium.org

[Matt Giuca, 2015-02-16 02:56:56]

calamity: For app_list owners. Screenshots on bug.

oshima: For resource owners. PNGs have been crushed!

[calamity, 2015-02-16 03:28:33]

app list lgtm.

[Matt Giuca, 2015-02-17 23:11:33]

mgiuca@chromium.org changed reviewers:
+ sadrul@chromium.org, skuhne@chromium.org

[Matt Giuca, 2015-02-17 23:11:33]

skuhne: ash/shelf owners (didn't notice we needed you before).
sadrul: To fill in for oshima who is OOO. I will TBR oshima.

[Matt Giuca, 2015-02-17 23:15:31]

mgiuca@chromium.org changed reviewers:
+ jamescook@chromium.org
- sadrul@chromium.org

[Matt Giuca, 2015-02-17 23:15:31]

Oops, sadrul is not an OWNER in ash.

+jamescook, for owners review of ash/resources. This change was requested by PMs
for M41 and Oshima is OOO, so I will TBR him after getting a review from a
higher-level owner.

[James Cook, 2015-02-17 23:40:20]

lgtm

[Matt Giuca, 2015-02-17 23:41:40]

The CQ bit was checked by mgiuca@chromium.org

[commit-bot: I haz the power, 2015-02-17 23:42:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/928063002/20001

[Mr4D (OOO till 08-26), 2015-02-18 00:20:38]

lgtm

[commit-bot: I haz the power, 2015-02-18 00:41:23]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-02-18 00:42:04]

Patchset 2 (id:??) landed as
https://crrev.com/4cadf30332cf12bdcdc5bfc70c9e9cd49d1ae8db
Cr-Commit-Position: refs/heads/master@{#316712}