Samuel Nevala ac1b772ec8 winrt: Fix crash when focus operation in progress.
If focus is locked repeatedly and fast on Lumia 920 FocusAsync
returns null IAsyncAction and ::await crash on null pointer. Fix crash
by returning early from method when operation in progress.

Change-Id: Ie268fd2276d3e9090a47bf362cd58743bb83284a
Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>
2015-10-22 16:50:06 +00:00
2015-02-12 10:27:47 +00:00
2015-09-15 11:33:17 +00:00
2015-02-24 16:23:09 +01:00
2012-09-03 19:53:28 +02:00
2015-02-12 10:27:47 +00:00
2015-08-13 15:07:55 +02:00
2015-08-13 15:07:55 +02:00
2015-02-12 10:27:47 +00:00
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