Robert Greenwalt 3cab6b0f1d Properly cancel Tether notification.
When we add a second type of tethering we unify the notifications
into a single generic type.  This is done by canceling the first
and replacing it, but this flow was improperly canceling, so
you could end up with orphaned tethering icons.

bug:7283605
Change-Id: I1d136f51592b4326d48578cf67b69122e45d4984
2012-10-04 16:44:26 -07:00
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2012-10-01 12:04:37 -07:00
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2012-10-02 18:09:10 -07:00
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