Bug 928678 - Hopeful fix for intermittent failure. r=jmaher, a=test-only
Bug 995075 - Include update_filter() changes from upstream speexdsp. r=padenot, a=1.3.x+

This includes changes to update_filter() that landed on m-c in bug 1042504.
Merge b2g28 to v1.3t. a=merge