Make system tray icons not show up as blurry on KDE

Make system tray icons not show up as blurry on KDE

KDE uses 24x24 system tray icons. If a smaller icon is provided, KDE stretches
the icon which makes it look blurry. This CL makes the system tray icons used
by Chrome 24x24 by padding the icons with transparent pixels.

BUG=382487
TEST=Manual

Committed: https://crrev.com/9bf1973b0fe56de26cf85009457c9ed8f5e757d7
Cr-Commit-Position: refs/heads/master@{#304086}

[pkotwicz, 2014-11-13 03:43:57]

Patchset #1 (id:1) has been deleted

[pkotwicz, 2014-11-13 03:49:52]

Patchset #1 (id:20001) has been deleted

[pkotwicz, 2014-11-13 04:48:14]

Patchset #1 (id:40001) has been deleted

[pkotwicz, 2014-11-13 04:50:32]

pkotwicz@chromium.org changed reviewers:
+ erg@chromium.org

[pkotwicz, 2014-11-13 05:02:39]

Elliot, PTAL

https://codereview.chromium.org/716253002/diff/60001/chrome/browser/ui/libgtk...
File chrome/browser/ui/libgtk2ui/app_indicator_icon.cc (right):

https://codereview.chromium.org/716253002/diff/60001/chrome/browser/ui/libgtk...
chrome/browser/ui/libgtk2ui/app_indicator_icon.cc:271:
"chrome_app_indicator2_%s", base::MD5DigestToBase16(digest).c_str());
This is "chrome_app_indicator2" on purpose. This is to make the new icon names
different than the old icon names even though the system tray icon assets are
the same. (Otherwise users would have to clear their icon cache -
icon-cache.kcache - in order to pick up the non blurry versions of the icons)

[Elliot Glaysher, 2014-11-13 18:54:55]

lgtm

[pkotwicz, 2014-11-13 20:51:28]

The CQ bit was checked by pkotwicz@chromium.org

[commit-bot: I haz the power, 2014-11-13 20:52:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/716253002/80001

[commit-bot: I haz the power, 2014-11-13 21:32:55]

Committed patchset #2 (id:80001)

[commit-bot: I haz the power, 2014-11-13 21:33:42]

Patchset 2 (id:??) landed as
https://crrev.com/9bf1973b0fe56de26cf85009457c9ed8f5e757d7
Cr-Commit-Position: refs/heads/master@{#304086}