fix review comments
fix review comments

mvenkatesh431/samples,virajs/samples,akashrchoksi/newone,pquochoang/samples,martin7890/samples,MahmoudFouad/samples,fippo/webrtc,volkanh/volkanh.github.io,bbandaru/samples,pquochoang/samples,MahmoudFouad/samples,mauricionr/samples,myself659/samples,mvenkatesh431/samples,dajise/samples,askdaddy/samples,fitraditya/samples,guoweis/webrtc,oliverhuangchao/samples,smayoorans/samples,taylor-b/samples,EmreAkkoyun/sample,myself659/samples,TribeMedia/samples,volkanh/volkanh.github.io,shaohung001/samples,mulyoved/samples,samdutton/webrtc,EmreAkkoyun/sample,dajise/samples,akashrchoksi/newone,TribeMedia/samples,shelsonjava/samples,fetterov/samples,procandi/samples,oliverhuangchao/samples,xdumaine/samples,xdumaine/samples,tsruban/samples,webrtc/samples,bemasc/samples,mauricionr/samples,kod3r/samples,fippo/webrtc,todotobe1/samples,volkanh/volkanh.github.io,procandi/samples,tsruban/samples,Roarz/samples,kod3r/samples,keshwans/samples,samdutton/webrtc,mvenkatesh431/samples,fetterov/samples,smayoorans/samples,pquochoang/samples,xdumaine/samples,overtakermtg/samples,Roarz/samples,MahmoudFouad/samples,leehz/samples,guoweis/webrtc,bemasc/samples,smbale/samples,mulyoved/samples,mulyoved/samples,kod3r/samples,dajise/samples,martin7890/samples,shelsonjava/samples,leehz/samples,bbandaru/samples,akashrchoksi/newone,Edward-Shawn/samples,tsruban/samples,smbale/samples,myself659/samples,martin7890/samples,b-cuts/samples,ralic/samples,shelsonjava/samples,guoweis/webrtc,taylor-b/samples,TribeMedia/samples,dushmis/webrtc,overtakermtg/samples,fitraditya/samples,smayoorans/samples,Edward-Shawn/samples,Roarz/samples,overtakermtg/samples,ralic/samples,dushmis/webrtc,bbandaru/samples,mauricionr/samples,shaohung001/samples,askdaddy/samples,fitraditya/samples,fetterov/samples,keshwans/samples,virajs/samples,b-cuts/samples,oliverhuangchao/samples,leehz/samples,todotobe1/samples,webrtc/samples,EmreAkkoyun/sample,Edward-Shawn/samples,todotobe1/samples,virajs/samples,smbale/samples,procandi/samples,b-cuts/samples,bemasc/samples,ralic/samples