Remove unnecessary #includes in update_screen.cc.

Remove unnecessary #includes in update_screen.cc.

After the landing https://codereview.chromium.org/212303003,
update_screen.cc doesn't need the command line switch related
headers anymore. So we can remove these.

BUG=349033
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=278208

[Sungmann Cho, 2014-06-17 00:31:39]

Please take a look. Thanks!

[Nikita (slow), 2014-06-18 09:22:19]

lgtm

[Sungmann Cho, 2014-06-18 09:32:06]

The CQ bit was checked by sungmann.cho@navercorp.com

[commit-bot: I haz the power, 2014-06-18 09:34:15]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sungmann.cho@navercorp.com/334403002/1

[commit-bot: I haz the power, 2014-06-18 15:38:12]

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

[commit-bot: I haz the power, 2014-06-18 15:38:12]

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

[Sungmann Cho, 2014-06-18 22:00:30]

The CQ bit was checked by sungmann.cho@navercorp.com

[commit-bot: I haz the power, 2014-06-18 22:01:16]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sungmann.cho@navercorp.com/334403002/1

[commit-bot: I haz the power, 2014-06-19 00:59:51]

Change committed as 278208