Fix ENABLE_THREAD_CHECKER
Fix ENABLE_THREAD_CHECKER

We've found base/threading/thread_checker_impl.h was included
when NDEBUG was defined (and DCHECK_ALWAYS_ON was not defined)
with cl.exe.

For example,
 > type a.c
 #define FOO
 #define ENABLE (!defined(FOO))
 #if ENABLE
 enabled
 #endif
 > cl /nologo /E a.c
 a.c
 #line 1 "a.c"

 enabled
 #line 6 "a.c"

BUG=none
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10414072

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@138755 0039d316-1c4b-4281-b951-d872f2087c98

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