Bug fix in WebRtcOpus_DurationEst
Bug fix in WebRtcOpus_DurationEst

The function WebRtcOpus_DurationEst returned the number of samples
per packet in the native 48 kHz sample rate, while the decoder
function returns data in 32 kHz sample rate. This creates a discrepancy
that makes NetEQ's lip-sync functionality add too little delay.

BUG=1334
TEST=try bots

Review URL: https://webrtc-codereview.appspot.com/1069006

git-svn-id: 03ae4fbe531b1eefc9d815f31e49022782c42458@3403 4adac7df-926f-26a2-2b94-8c16560cd09d

Alkalyne/webrtctrunk,SlimXperiments/external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,android-ia/platform_external_chromium_org_third_party_webrtc,krieger-od/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,krieger-od/nwjs_chromium_webrtc,bpsinc-native/src_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,sippet/webrtc,bpsinc-native/src_third_party_webrtc,unisontech/webrtc-core,jgcaaprom/android_external_chromium_org_third_party_webrtc,lukeweber/webrtc-src-override,xin3liang/platform_external_chromium_org_third_party_webrtc,sippet/webrtc,sippet/webrtc,aleonliao/webrtc-trunk,xhook/webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,aleonliao/webrtc-trunk,sippet/webrtc,AOSPU/external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,SlimXperiments/external_chromium_org_third_party_webrtc,AOSPU/external_chromium_org_third_party_webrtc,bpsinc-native/src_third_party_webrtc,SlimXperiments/external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,bpsinc-native/src_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,unisontech/webrtc-core,unisontech/webrtc-core,xhook/webrtc,aleonliao/webrtc-trunk,Omegaphora/external_chromium_org_third_party_webrtc,krieger-od/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jchavanton/webrtc,lukeweber/webrtc-src-override,SlimXperiments/external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,SlimXperiments/external_chromium_org_third_party_webrtc,AOSPU/external_chromium_org_third_party_webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,xhook/webrtc,PersonifyInc/chromium_webrtc,Alkalyne/webrtctrunk,krieger-od/nwjs_chromium_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,lukeweber/webrtc-src-override,jchavanton/webrtc,jchavanton/webrtc,MIPS/external-chromium_org-third_party-webrtc,unisontech/webrtc-core,svn2github/webrtc-Revision-8758,jchavanton/webrtc,jchavanton/webrtc,xhook/webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,SlimXperiments/external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,xin3liang/platform_external_chromium_org_third_party_webrtc,bpsinc-native/src_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,sippet/webrtc,PersonifyInc/chromium_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,unisontech/webrtc-core,Alkalyne/webrtctrunk,bpsinc-native/src_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,aleonliao/webrtc-trunk,svn2github/webrtc-Revision-8758,krieger-od/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,unisontech/webrtc-core,AOSPU/external_chromium_org_third_party_webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,lukeweber/webrtc-src-override,bpsinc-native/src_third_party_webrtc,Alkalyne/webrtctrunk,AOSPU/external_chromium_org_third_party_webrtc,lukeweber/webrtc-src-override,SlimXperiments/external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,xin3liang/platform_external_chromium_org_third_party_webrtc,krieger-od/webrtc,svn2github/webrtc-Revision-8758,PersonifyInc/chromium_webrtc,xhook/webrtc,jchavanton/webrtc,bpsinc-native/src_third_party_webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,svn2github/webrtc-Revision-8758,krieger-od/nwjs_chromium_webrtc,CyanogenMod/android_external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,krieger-od/nwjs_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