Revert of Disable audio splice frame generation for now. (https://codereview.chromium.org/213473004/)
Revert of Disable audio splice frame generation for now. (https://codereview.chromium.org/213473004/)

Reason for revert:
Causes test failures.

http://build.chromium.org/p/chromium.memory/builders/Mac%20ASan%20Tests%20%281%29/builds/569/steps/media_unittests/logs/stdio

Original issue's description:
> Disable audio splice frame generation for now.
> 
> BUG=356073, 356545
> TEST=none
> R=acolwell@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=259713

TBR=acolwell@chromium.org,dalecurtis@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=356073, 356545

Review URL: https://codereview.chromium.org/213573003

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@259728 0039d316-1c4b-4281-b951-d872f2087c98

bright-sparks/chromium-spacewalk,TheTypoMaster/chromium-crosswalk,littlstar/chromium.src,ltilve/chromium,Just-D/chromium-1,TheTypoMaster/chromium-crosswalk,bright-sparks/chromium-spacewalk,Jonekee/chromium.src,Fireblend/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,markYoungH/chromium.src,Pluto-tv/chromium-crosswalk,Jonekee/chromium.src,axinging/chromium-crosswalk,bright-sparks/chromium-spacewalk,hgl888/chromium-crosswalk,chuan9/chromium-crosswalk,jaruba/chromium.src,M4sse/chromium.src,crosswalk-project/chromium-crosswalk-efl,markYoungH/chromium.src,ltilve/chromium,M4sse/chromium.src,Chilledheart/chromium,M4sse/chromium.src,hgl888/chromium-crosswalk,Pluto-tv/chromium-crosswalk,markYoungH/chromium.src,PeterWangIntel/chromium-crosswalk,ondra-novak/chromium.src,Pluto-tv/chromium-crosswalk,patrickm/chromium.src,dednal/chromium.src,krieger-od/nwjs_chromium.src,hgl888/chromium-crosswalk-efl,M4sse/chromium.src,dushu1203/chromium.src,fujunwei/chromium-crosswalk,jaruba/chromium.src,hgl888/chromium-crosswalk-efl,hgl888/chromium-crosswalk,patrickm/chromium.src,Jonekee/chromium.src,Fireblend/chromium-crosswalk,hgl888/chromium-crosswalk,jaruba/chromium.src,Just-D/chromium-1,dushu1203/chromium.src,dednal/chromium.src,crosswalk-project/chromium-crosswalk-efl,ltilve/chromium,TheTypoMaster/chromium-crosswalk,fujunwei/chromium-crosswalk,krieger-od/nwjs_chromium.src,Chilledheart/chromium,chuan9/chromium-crosswalk,dushu1203/chromium.src,ondra-novak/chromium.src,littlstar/chromium.src,littlstar/chromium.src,Just-D/chromium-1,markYoungH/chromium.src,TheTypoMaster/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,krieger-od/nwjs_chromium.src,hgl888/chromium-crosswalk-efl,axinging/chromium-crosswalk,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,chuan9/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,Pluto-tv/chromium-crosswalk,Chilledheart/chromium,hgl888/chromium-crosswalk,Chilledheart/chromium,mohamed--abdel-maksoud/chromium.src,dushu1203/chromium.src,ondra-novak/chromium.src,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,chuan9/chromium-crosswalk,hgl888/chromium-crosswalk,Pluto-tv/chromium-crosswalk,littlstar/chromium.src,dednal/chromium.src,Pluto-tv/chromium-crosswalk,ltilve/chromium,mohamed--abdel-maksoud/chromium.src,PeterWangIntel/chromium-crosswalk,ltilve/chromium,PeterWangIntel/chromium-crosswalk,jaruba/chromium.src,crosswalk-project/chromium-crosswalk-efl,ondra-novak/chromium.src,dednal/chromium.src,krieger-od/nwjs_chromium.src,crosswalk-project/chromium-crosswalk-efl,markYoungH/chromium.src,krieger-od/nwjs_chromium.src,axinging/chromium-crosswalk,Jonekee/chromium.src,chuan9/chromium-crosswalk,krieger-od/nwjs_chromium.src,jaruba/chromium.src,fujunwei/chromium-crosswalk,dednal/chromium.src,mohamed--abdel-maksoud/chromium.src,axinging/chromium-crosswalk,jaruba/chromium.src,Just-D/chromium-1,hgl888/chromium-crosswalk-efl,Chilledheart/chromium,ondra-novak/chromium.src,Fireblend/chromium-crosswalk,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,ondra-novak/chromium.src,bright-sparks/chromium-spacewalk,crosswalk-project/chromium-crosswalk-efl,dushu1203/chromium.src,dushu1203/chromium.src,Fireblend/chromium-crosswalk,dednal/chromium.src,TheTypoMaster/chromium-crosswalk,ltilve/chromium,M4sse/chromium.src,patrickm/chromium.src,Jonekee/chromium.src,M4sse/chromium.src,patrickm/chromium.src,Fireblend/chromium-crosswalk,fujunwei/chromium-crosswalk,Jonekee/chromium.src,mohamed--abdel-maksoud/chromium.src,bright-sparks/chromium-spacewalk,krieger-od/nwjs_chromium.src,hgl888/chromium-crosswalk-efl,patrickm/chromium.src,PeterWangIntel/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,littlstar/chromium.src,fujunwei/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,hgl888/chromium-crosswalk-efl,ondra-novak/chromium.src,markYoungH/chromium.src,markYoungH/chromium.src,markYoungH/chromium.src,bright-sparks/chromium-spacewalk,M4sse/chromium.src,Jonekee/chromium.src,dushu1203/chromium.src,Chilledheart/chromium,markYoungH/chromium.src,bright-sparks/chromium-spacewalk,fujunwei/chromium-crosswalk,ltilve/chromium,Fireblend/chromium-crosswalk,patrickm/chromium.src,krieger-od/nwjs_chromium.src,jaruba/chromium.src,ondra-novak/chromium.src,patrickm/chromium.src,TheTypoMaster/chromium-crosswalk,Jonekee/chromium.src,dednal/chromium.src,jaruba/chromium.src,patrickm/chromium.src,littlstar/chromium.src,mohamed--abdel-maksoud/chromium.src,ltilve/chromium,krieger-od/nwjs_chromium.src,dushu1203/chromium.src,hgl888/chromium-crosswalk,Jonekee/chromium.src,Jonekee/chromium.src,Fireblend/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,Pluto-tv/chromium-crosswalk,M4sse/chromium.src,Pluto-tv/chromium-crosswalk,Pluto-tv/chromium-crosswalk,markYoungH/chromium.src,TheTypoMaster/chromium-crosswalk,Just-D/chromium-1,jaruba/chromium.src,fujunwei/chromium-crosswalk,axinging/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,dednal/chromium.src,bright-sparks/chromium-spacewalk,axinging/chromium-crosswalk,patrickm/chromium.src,Chilledheart/chromium,markYoungH/chromium.src,fujunwei/chromium-crosswalk,axinging/chromium-crosswalk,Jonekee/chromium.src,Just-D/chromium-1,PeterWangIntel/chromium-crosswalk,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,ondra-novak/chromium.src,TheTypoMaster/chromium-crosswalk,jaruba/chromium.src,mohamed--abdel-maksoud/chromium.src,PeterWangIntel/chromium-crosswalk,chuan9/chromium-crosswalk,hgl888/chromium-crosswalk-efl,mohamed--abdel-maksoud/chromium.src,Chilledheart/chromium,dednal/chromium.src,jaruba/chromium.src,crosswalk-project/chromium-crosswalk-efl,crosswalk-project/chromium-crosswalk-efl,chuan9/chromium-crosswalk,Just-D/chromium-1,Fireblend/chromium-crosswalk,krieger-od/nwjs_chromium.src,dednal/chromium.src,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,littlstar/chromium.src,dushu1203/chromium.src,axinging/chromium-crosswalk,chuan9/chromium-crosswalk,dednal/chromium.src,Chilledheart/chromium,hgl888/chromium-crosswalk-efl,M4sse/chromium.src,Just-D/chromium-1,ltilve/chromium,krieger-od/nwjs_chromium.src,bright-sparks/chromium-spacewalk,Just-D/chromium-1,hgl888/chromium-crosswalk-efl,PeterWangIntel/chromium-crosswalk,fujunwei/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl