EF_NUMPAD_KEY flag for ui::KeyEvent

EF_NUMPAD_KEY flag for ui::KeyEvent

Added a flag to distinguish between a KeyEvent that originates from
a number pad key and one that does not, where the KeyboardCode is
the same. For example, VKEY_LEFT can originate both from the cursor
block and the number pad '4' key, and the latter will have the
EF_NUMPAD_KEY flag set. This is needed to rewrite number pad events
to number key events without affecting editing key events.

BUG=354034
TEST=events_unittests EventsXTest.NumpadKeyEvents
R=sadrul@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=264257

[sadrul, 2014-04-15 20:35:22]

lgtm

[sadrul, 2014-04-15 20:36:03]

On 2014/04/15 20:35:22, sadrul wrote:
> lgtm

You probably want to change the CL title/description to say 'ui::KeyEvent'
instead of just 'ui::Event'

[kpschoedel, 2014-04-15 20:39:14]

The CQ bit was checked by kpschoedel@chromium.org

[commit-bot: I haz the power, 2014-04-15 20:41:02]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kpschoedel@chromium.org/239313004/1

[commit-bot: I haz the power, 2014-04-15 21:54:27]

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

[commit-bot: I haz the power, 2014-04-15 21:54:27]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_chromeos_rel

[kpschoedel, 2014-04-16 15:48:39]

derat, PTAL @ chrome/browser/chromeos/events/event_rewriter_unittest.cc

These tests check for an exact flag match and so need to have ui::EF_NUMPAD_KEY
added.

EF_NUMPAD_KEY distinguishes between otherwise identical keycodes (e.g.
VKEY_LEFT) in order to allow the upcoming ui::EventRewriter version of
RewriteNumPad to affect only the number pad instances. (These tests will then be
stripped of X11 dependencies.)

[Daniel Erat, 2014-04-16 15:52:11]

lgtm for c/b/chromeos

[kpschoedel, 2014-04-16 15:55:24]

The CQ bit was checked by kpschoedel@chromium.org

[commit-bot: I haz the power, 2014-04-16 15:56:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kpschoedel@chromium.org/239313004/20001

[commit-bot: I haz the power, 2014-04-16 18:32:50]

Change committed as 264257