mac: Let task manager use IDR_PRODUCT_LOGO_16 instead of NSApplicationIcon.

mac: Let task manager use IDR_PRODUCT_LOGO_16 instead of NSApplicationIcon.

According to `purge; sample -wait Chromium` and launching
out/Release/Chromium.app/Contents/MacOS with 30 wikipedia tabs, this reduces
time spent creating the TaskManagerModel (which happens on the IO thread, in
response to raw bytes arriving from the network) from ~100 samples to ~1 sample.
The icon looks slightly different from the icon that Activity Monitor displays,
but a) it looks arguably nicer now (sharp) and b) most people never open the
task manager.

BUG=none
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255797

[viettrungluu, 2014-03-08 02:30:03]

WAT LGTM

[Nico, 2014-03-08 02:38:19]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2014-03-08 11:19:53]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/190533009/1

[commit-bot: I haz the power, 2014-03-08 14:06:10]

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

[commit-bot: I haz the power, 2014-03-08 14:06:10]

Retried try job too often on mac_rel for step(s) telemetry_perf_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[Nico, 2014-03-08 21:11:54]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2014-03-08 21:12:00]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/190533009/1

[commit-bot: I haz the power, 2014-03-08 21:12:35]

Change committed as 255797