mixer: Use mangled-private variables to avoid name collisions with subclasses
mixer: Use mangled-private variables to avoid name collisions with subclasses

hkariti/mopidy,jcass77/mopidy,quartz55/mopidy,tkem/mopidy,woutervanwijk/mopidy,jmarsik/mopidy,jodal/mopidy,quartz55/mopidy,mokieyue/mopidy,swak/mopidy,quartz55/mopidy,swak/mopidy,kingosticks/mopidy,kingosticks/mopidy,swak/mopidy,bacontext/mopidy,diandiankan/mopidy,tkem/mopidy,jmarsik/mopidy,hkariti/mopidy,glogiotatidis/mopidy,glogiotatidis/mopidy,glogiotatidis/mopidy,adamcik/mopidy,ZenithDK/mopidy,swak/mopidy,bacontext/mopidy,priestd09/mopidy,bencevans/mopidy,tkem/mopidy,vrs01/mopidy,mopidy/mopidy,pacificIT/mopidy,dbrgn/mopidy,ZenithDK/mopidy,jcass77/mopidy,rawdlite/mopidy,rawdlite/mopidy,diandiankan/mopidy,ZenithDK/mopidy,adamcik/mopidy,SuperStarPL/mopidy,diandiankan/mopidy,diandiankan/mopidy,bencevans/mopidy,hkariti/mopidy,mopidy/mopidy,pacificIT/mopidy,pacificIT/mopidy,kingosticks/mopidy,adamcik/mopidy,liamw9534/mopidy,ali/mopidy,dbrgn/mopidy,dbrgn/mopidy,jcass77/mopidy,jmarsik/mopidy,bacontext/mopidy,bacontext/mopidy,jmarsik/mopidy,mokieyue/mopidy,mokieyue/mopidy,rawdlite/mopidy,priestd09/mopidy,SuperStarPL/mopidy,pacificIT/mopidy,rawdlite/mopidy,quartz55/mopidy,tkem/mopidy,jodal/mopidy,SuperStarPL/mopidy,bencevans/mopidy,bencevans/mopidy,dbrgn/mopidy,ali/mopidy,woutervanwijk/mopidy,ZenithDK/mopidy,liamw9534/mopidy,glogiotatidis/mopidy,vrs01/mopidy,mokieyue/mopidy,vrs01/mopidy,hkariti/mopidy,mopidy/mopidy,jodal/mopidy,SuperStarPL/mopidy,ali/mopidy,priestd09/mopidy,vrs01/mopidy,ali/mopidy