Drop warnings from adb shell output

Drop warnings from adb shell output

This is a quick and dirty fix for a problem that occurs to me when
trying to run instrumentation tests in a simulator.
For some reason 'pm path org.chromium.content_shell_apk.tests' outputs
a warning message in my environment that confuses the python scripts
and they end up calling md5sum for the root directory which is a bit
slow... The real fix would be to be able drop the stderr of the command
but it needs a lot of plumbing and probably there is not that much chance
that something like that will happen again for someone.

BUG=334439
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=247742

[craigdh, 2014-01-23 21:55:36]

https://codereview.chromium.org/138143019/diff/1/build/android/pylib/android_...
File build/android/pylib/android_commands.py (right):

https://codereview.chromium.org/138143019/diff/1/build/android/pylib/android_...
build/android/pylib/android_commands.py:644: # FIXME: we should really be able
to drop the stderr of the command
Chromium style is "TODO(name): message"

https://codereview.chromium.org/138143019/diff/1/build/android/pylib/android_...
build/android/pylib/android_commands.py:645: # or rise and exception based on
what the caller wants.
"rise and" -> "raise an"

[craigdh, 2014-01-28 17:26:00]

lgtm.

[commit-bot: I haz the power, 2014-01-29 16:09:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/b.kelemen@samsung.com/138143019/60001

[commit-bot: I haz the power, 2014-01-29 17:40:49]

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

[commit-bot: I haz the power, 2014-01-29 18:08:57]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/b.kelemen@samsung.com/138143019/60001

[commit-bot: I haz the power, 2014-01-29 21:27:37]

Change committed as 247742