Added uninstall option to notification of high disk usage by an extension

Added uninstall option to notification of high disk usage by an extension

This patch adds an additional action to the notification shown
when an extension or app is consuming excessive disk space.

BUG=347801
TEST=browser_tests (ExtensionStorageMonitorTest.*)

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=275262

[tmdiep, 2014-06-04 05:16:05]

This patch builds on https://codereview.chromium.org/221933013 and adds an
additional "Remove [app|extension]" action to the notification. Thanks in
advance.

[koz (OOO until 15th September), 2014-06-04 05:47:27]

lgtm

[tmdiep, 2014-06-04 23:16:44]

The CQ bit was checked by tmdiep@chromium.org

[commit-bot: I haz the power, 2014-06-04 23:18:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tmdiep@chromium.org/310183005/1

[commit-bot: I haz the power, 2014-06-05 04:06:33]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_chromium_gn_compile_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_chromium_gn_c...)
  win_chromium_compile_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_compile_...)

[commit-bot: I haz the power, 2014-06-05 04:10:59]

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

[commit-bot: I haz the power, 2014-06-05 04:10:59]

Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_chromium_gn_c...)

[tmdiep, 2014-06-05 22:00:48]

The CQ bit was checked by tmdiep@chromium.org

[commit-bot: I haz the power, 2014-06-05 22:01:21]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tmdiep@chromium.org/310183005/1

[commit-bot: I haz the power, 2014-06-05 22:28:44]

Change committed as 275262