Fix goma on android buildbots.
Fix goma on android buildbots.

We were working around goma zombie processes by killing
compiler_proxy.  But it turns out that compiler_proxy is
started in gyp (during compiler_version.py, since gomacc
is set as CXX environment variable).  Our work-around was
not bypassing the occasional stuck compiler_proxy and
causing intermittent gyp errors on the android builder.

R=cmp@chromium.org
BUG=

Review URL: https://codereview.chromium.org/10917284

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@156971 0039d316-1c4b-4281-b951-d872f2087c98

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