Hi! Recently I saw this - https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=786909#51 And google already fix it by adding aditional configure option `enable_hotwording=0` - https://code.google.com/p/chromium/issues/detail?id=491435#c5 So I'm suggest add USE-flag for it , hotwording, say, and disable it by default. Thanks.
From equery u chromium: - - hotwording : Enable voice-recognition support (Ok Google)