When the search view is attached and detached we announce that
for accessibility. The trouble is that if the activity is being
torn down we are trying to access resources from a fragment that
is detached and the qcrash occurs. This change does not try to
access resources if the activity is finishing and also we do not
load resource strings if accessibility is not enabled.
bug:11127814
Change-Id: I4a47a8ed3b6a13544cf17b4395560246a33f0e2d
53e8a26d61