Updates version of android sdk and api installed and creates ARM and x86 AVD's.
Updates version of android sdk and api installed and creates ARM and x86 AVD's.

Updates the downloaded sdk to be r18, and installs SDK_TARGET 15 instead of 14.
The newer SDK supports both ARM and x86.  Thus, when creating an Android Virtual
Device (AVD), the platform must be specified.  This change creates both a ARM
and x86 AVD (i.e. "android list avd" will show one ARM AVD and one x86 AVD.


Review URL: https://chromiumcodereview.appspot.com/10636018

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@144002 0039d316-1c4b-4281-b951-d872f2087c98

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