0beac583bb
This CL adds an interface for a generic PostProcessing module that is optionally added to the APM at construction time. (Parenthetically this CL also adds a missing lock check to InitializeGainController2.) Bug: webrtc:8201 Change-Id: I7de64cf8d5335ecec450da8a961660906141d42a Reviewed-on: https://webrtc-review.googlesource.com/1570 Commit-Queue: Sam Zackrisson <saza@webrtc.org> Reviewed-by: Per Åhgren <peah@webrtc.org> Reviewed-by: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19973}