Change event isn't firing when the user reverts the value of a color/date/time input after JS cha…

Change event isn't firing when the user reverts the value of a color/date/time input after JS changed the value

Setting the value through the value property wasn't setting the textAsOfLastFormControlChangeEvent.
So change events weren't firing when the user changes the value back to
the one that was set before JS changed it.

TEST=automated.
BUG=244065
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=157061

[tkent, 2013-09-02 02:14:54]

lgtm

[commit-bot: I haz the power, 2013-09-02 02:18:33]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keishi@chromium.org/23851005/1

[commit-bot: I haz the power, 2013-09-02 03:44:05]

Retried try job too often on linux_blink_rel for step(s) webkit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_blin...

[commit-bot: I haz the power, 2013-09-02 04:43:39]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/keishi@chromium.org/23851005/17001

[commit-bot: I haz the power, 2013-09-02 05:53:39]

Change committed as 157061