Do not call event.preventDefault() on touchstart for menu items.

Do not call event.preventDefault()  on touchstart for menu items.

preventDefault() on 'touchstart' prevents tap operation from dispatching click-like events.
On 'touchstart', preventDefault() should not be called.

BUG=374177
TEST=manually tested

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=271204

[fukino, 2014-05-16 13:16:01]

@arv,
I'm sorry, I made a regression by previous CL(284233007).
Could you take a look at this fix?

[arv (Not doing code reviews), 2014-05-16 14:23:38]

LGTM

[fukino, 2014-05-16 14:28:32]

On 2014/05/16 14:23:38, arv wrote:
> LGTM

Thank you for your prompt review!

[fukino, 2014-05-16 14:28:37]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2014-05-16 14:28:52]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/fukino@chromium.org/284233007/1

[commit-bot: I haz the power, 2014-05-16 16:24:31]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)
  linux_chromium_chromeos_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_chrome...)

[commit-bot: I haz the power, 2014-05-16 16:44:20]

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

[commit-bot: I haz the power, 2014-05-16 16:44:21]

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

[fukino, 2014-05-17 05:21:16]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2014-05-17 05:21:49]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/fukino@chromium.org/284233007/1

[commit-bot: I haz the power, 2014-05-17 15:33:46]

Change committed as 271204