Cros: Check PCM after opening Alsa mixer
Cros: Check PCM after opening Alsa mixer

Alsa is logging numerous messages in the buildbot Linux Builder (Chromium OS) logs when trying to open a PCM stream after CL 6591095.  This block of code
was moved down to run only after successfully attaching to the Alsa mixer.

BUG=chromium-os:12151
TEST=none

Review URL: http://codereview.chromium.org/6621026

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@77021 0039d316-1c4b-4281-b951-d872f2087c98

chuan9/chromium-crosswalk,Fireblend/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,pozdnyakov/chromium-crosswalk,chuan9/chromium-crosswalk,Fireblend/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,hgl888/chromium-crosswalk,patrickm/chromium.src,littlstar/chromium.src,patrickm/chromium.src,keishi/chromium,hujiajie/pa-chromium,Jonekee/chromium.src,robclark/chromium,chuan9/chromium-crosswalk,zcbenz/cefode-chromium,ChromiumWebApps/chromium,anirudhSK/chromium,jaruba/chromium.src,ChromiumWebApps/chromium,anirudhSK/chromium,Jonekee/chromium.src,nacl-webkit/chrome_deps,bright-sparks/chromium-spacewalk,rogerwang/chromium,markYoungH/chromium.src,zcbenz/cefode-chromium,jaruba/chromium.src,markYoungH/chromium.src,bright-sparks/chromium-spacewalk,Chilledheart/chromium,hujiajie/pa-chromium,dushu1203/chromium.src,krieger-od/nwjs_chromium.src,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,Just-D/chromium-1,M4sse/chromium.src,PeterWangIntel/chromium-crosswalk,hgl888/chromium-crosswalk-efl,TheTypoMaster/chromium-crosswalk,M4sse/chromium.src,dushu1203/chromium.src,anirudhSK/chromium,junmin-zhu/chromium-rivertrail,crosswalk-project/chromium-crosswalk-efl,patrickm/chromium.src,dednal/chromium.src,mohamed--abdel-maksoud/chromium.src,ondra-novak/chromium.src,anirudhSK/chromium,anirudhSK/chromium,junmin-zhu/chromium-rivertrail,littlstar/chromium.src,junmin-zhu/chromium-rivertrail,axinging/chromium-crosswalk,dednal/chromium.src,ChromiumWebApps/chromium,littlstar/chromium.src,anirudhSK/chromium,ondra-novak/chromium.src,pozdnyakov/chromium-crosswalk,zcbenz/cefode-chromium,keishi/chromium,robclark/chromium,mohamed--abdel-maksoud/chromium.src,axinging/chromium-crosswalk,ChromiumWebApps/chromium,markYoungH/chromium.src,Pluto-tv/chromium-crosswalk,chuan9/chromium-crosswalk,Jonekee/chromium.src,rogerwang/chromium,fujunwei/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,pozdnyakov/chromium-crosswalk,M4sse/chromium.src,keishi/chromium,Just-D/chromium-1,robclark/chromium,ltilve/chromium,hujiajie/pa-chromium,M4sse/chromium.src,nacl-webkit/chrome_deps,jaruba/chromium.src,mohamed--abdel-maksoud/chromium.src,bright-sparks/chromium-spacewalk,Chilledheart/chromium,patrickm/chromium.src,nacl-webkit/chrome_deps,nacl-webkit/chrome_deps,Jonekee/chromium.src,ChromiumWebApps/chromium,M4sse/chromium.src,hujiajie/pa-chromium,krieger-od/nwjs_chromium.src,pozdnyakov/chromium-crosswalk,hujiajie/pa-chromium,axinging/chromium-crosswalk,krieger-od/nwjs_chromium.src,dushu1203/chromium.src,ltilve/chromium,ltilve/chromium,mogoweb/chromium-crosswalk,robclark/chromium,jaruba/chromium.src,robclark/chromium,Pluto-tv/chromium-crosswalk,zcbenz/cefode-chromium,zcbenz/cefode-chromium,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk,M4sse/chromium.src,zcbenz/cefode-chromium,hgl888/chromium-crosswalk-efl,krieger-od/nwjs_chromium.src,dednal/chromium.src,ChromiumWebApps/chromium,crosswalk-project/chromium-crosswalk-efl,timopulkkinen/BubbleFish,jaruba/chromium.src,Pluto-tv/chromium-crosswalk,littlstar/chromium.src,hgl888/chromium-crosswalk,dushu1203/chromium.src,dednal/chromium.src,PeterWangIntel/chromium-crosswalk,chuan9/chromium-crosswalk,ChromiumWebApps/chromium,bright-sparks/chromium-spacewalk,mogoweb/chromium-crosswalk,jaruba/chromium.src,jaruba/chromium.src,dednal/chromium.src,patrickm/chromium.src,mohamed--abdel-maksoud/chromium.src,hgl888/chromium-crosswalk-efl,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,Just-D/chromium-1,junmin-zhu/chromium-rivertrail,markYoungH/chromium.src,hgl888/chromium-crosswalk,robclark/chromium,hgl888/chromium-crosswalk-efl,krieger-od/nwjs_chromium.src,PeterWangIntel/chromium-crosswalk,bright-sparks/chromium-spacewalk,krieger-od/nwjs_chromium.src,Pluto-tv/chromium-crosswalk,hgl888/chromium-crosswalk-efl,markYoungH/chromium.src,junmin-zhu/chromium-rivertrail,axinging/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,Pluto-tv/chromium-crosswalk,ChromiumWebApps/chromium,hgl888/chromium-crosswalk,Jonekee/chromium.src,dednal/chromium.src,patrickm/chromium.src,hujiajie/pa-chromium,nacl-webkit/chrome_deps,dushu1203/chromium.src,Just-D/chromium-1,littlstar/chromium.src,Pluto-tv/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,keishi/chromium,krieger-od/nwjs_chromium.src,Just-D/chromium-1,Fireblend/chromium-crosswalk,fujunwei/chromium-crosswalk,rogerwang/chromium,mohamed--abdel-maksoud/chromium.src,PeterWangIntel/chromium-crosswalk,Just-D/chromium-1,junmin-zhu/chromium-rivertrail,hujiajie/pa-chromium,nacl-webkit/chrome_deps,crosswalk-project/chromium-crosswalk-efl,mohamed--abdel-maksoud/chromium.src,axinging/chromium-crosswalk,rogerwang/chromium,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,Jonekee/chromium.src,TheTypoMaster/chromium-crosswalk,robclark/chromium,krieger-od/nwjs_chromium.src,junmin-zhu/chromium-rivertrail,dednal/chromium.src,pozdnyakov/chromium-crosswalk,littlstar/chromium.src,pozdnyakov/chromium-crosswalk,bright-sparks/chromium-spacewalk,dednal/chromium.src,timopulkkinen/BubbleFish,krieger-od/nwjs_chromium.src,M4sse/chromium.src,robclark/chromium,ChromiumWebApps/chromium,anirudhSK/chromium,bright-sparks/chromium-spacewalk,PeterWangIntel/chromium-crosswalk,fujunwei/chromium-crosswalk,ondra-novak/chromium.src,Jonekee/chromium.src,fujunwei/chromium-crosswalk,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,Pluto-tv/chromium-crosswalk,jaruba/chromium.src,hujiajie/pa-chromium,hgl888/chromium-crosswalk-efl,mohamed--abdel-maksoud/chromium.src,Jonekee/chromium.src,bright-sparks/chromium-spacewalk,Chilledheart/chromium,timopulkkinen/BubbleFish,ondra-novak/chromium.src,TheTypoMaster/chromium-crosswalk,hgl888/chromium-crosswalk,keishi/chromium,chuan9/chromium-crosswalk,fujunwei/chromium-crosswalk,pozdnyakov/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,pozdnyakov/chromium-crosswalk,dushu1203/chromium.src,fujunwei/chromium-crosswalk,hujiajie/pa-chromium,hgl888/chromium-crosswalk-efl,ltilve/chromium,anirudhSK/chromium,timopulkkinen/BubbleFish,Chilledheart/chromium,timopulkkinen/BubbleFish,mogoweb/chromium-crosswalk,Just-D/chromium-1,anirudhSK/chromium,junmin-zhu/chromium-rivertrail,timopulkkinen/BubbleFish,zcbenz/cefode-chromium,fujunwei/chromium-crosswalk,mogoweb/chromium-crosswalk,mogoweb/chromium-crosswalk,timopulkkinen/BubbleFish,mohamed--abdel-maksoud/chromium.src,ChromiumWebApps/chromium,zcbenz/cefode-chromium,hgl888/chromium-crosswalk,timopulkkinen/BubbleFish,M4sse/chromium.src,TheTypoMaster/chromium-crosswalk,markYoungH/chromium.src,junmin-zhu/chromium-rivertrail,axinging/chromium-crosswalk,Chilledheart/chromium,fujunwei/chromium-crosswalk,ChromiumWebApps/chromium,ltilve/chromium,Chilledheart/chromium,Just-D/chromium-1,patrickm/chromium.src,hgl888/chromium-crosswalk,zcbenz/cefode-chromium,patrickm/chromium.src,crosswalk-project/chromium-crosswalk-efl,Jonekee/chromium.src,mogoweb/chromium-crosswalk,keishi/chromium,jaruba/chromium.src,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,Pluto-tv/chromium-crosswalk,Fireblend/chromium-crosswalk,ondra-novak/chromium.src,mogoweb/chromium-crosswalk,krieger-od/nwjs_chromium.src,patrickm/chromium.src,mogoweb/chromium-crosswalk,Fireblend/chromium-crosswalk,anirudhSK/chromium,hujiajie/pa-chromium,Fireblend/chromium-crosswalk,Just-D/chromium-1,keishi/chromium,hgl888/chromium-crosswalk-efl,dushu1203/chromium.src,PeterWangIntel/chromium-crosswalk,junmin-zhu/chromium-rivertrail,rogerwang/chromium,Chilledheart/chromium,ltilve/chromium,crosswalk-project/chromium-crosswalk-efl,dednal/chromium.src,zcbenz/cefode-chromium,anirudhSK/chromium,dednal/chromium.src,ondra-novak/chromium.src,nacl-webkit/chrome_deps,nacl-webkit/chrome_deps,ltilve/chromium,markYoungH/chromium.src,robclark/chromium,markYoungH/chromium.src,zcbenz/cefode-chromium,rogerwang/chromium,ondra-novak/chromium.src,keishi/chromium,mohamed--abdel-maksoud/chromium.src,hgl888/chromium-crosswalk,Pluto-tv/chromium-crosswalk,keishi/chromium,markYoungH/chromium.src,rogerwang/chromium,anirudhSK/chromium,hgl888/chromium-crosswalk-efl,dushu1203/chromium.src,chuan9/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,Chilledheart/chromium,ondra-novak/chromium.src,nacl-webkit/chrome_deps,axinging/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,jaruba/chromium.src,dushu1203/chromium.src,TheTypoMaster/chromium-crosswalk,nacl-webkit/chrome_deps,keishi/chromium,timopulkkinen/BubbleFish,ltilve/chromium,PeterWangIntel/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,rogerwang/chromium,timopulkkinen/BubbleFish,keishi/chromium,pozdnyakov/chromium-crosswalk,bright-sparks/chromium-spacewalk,hujiajie/pa-chromium,ChromiumWebApps/chromium,fujunwei/chromium-crosswalk,dednal/chromium.src,mogoweb/chromium-crosswalk,Chilledheart/chromium,markYoungH/chromium.src,axinging/chromium-crosswalk,pozdnyakov/chromium-crosswalk,rogerwang/chromium,nacl-webkit/chrome_deps,junmin-zhu/chromium-rivertrail,littlstar/chromium.src,TheTypoMaster/chromium-crosswalk,Jonekee/chromium.src,crosswalk-project/chromium-crosswalk-efl,jaruba/chromium.src,rogerwang/chromium,pozdnyakov/chromium-crosswalk,robclark/chromium,markYoungH/chromium.src,timopulkkinen/BubbleFish,ltilve/chromium,Jonekee/chromium.src,mogoweb/chromium-crosswalk,krieger-od/nwjs_chromium.src,M4sse/chromium.src,PeterWangIntel/chromium-crosswalk,ondra-novak/chromium.src