Bug 960873 - Part 1: Refactor MediaDecoderReader.h into separate headers. r=cpearce, a=1.3+
Bug 960873 - Part 2: Create AudioCompactor class to minimize allocation slop. r=cpearce, a=1.3+

Based on original patch written by :gal.
Bug 960873 - Part 4: Make OMX use AudioCompactor. r=cpearce, a=1.3+
Bug 967414 - Enable DataStore API in B2G for certified apps only by default. r=bz, a=1.3+
Bug 958642 - MozActivity must fire an error when the selected app is killed. r=fabrice, a=1.3+
Bug 967236 - Evict touches more aggressively. r=wesj, a=1.3+
Bug 965593 - Only use large z-index on root scroll frames to make overlay scrollbars draw above other content. r=roc, a=1.3+

For non-root scroll frames this would lead to the scrollbars drawing above content outside the scroll frame and above everything in the scroll frame.