Revert 65580 - Fix pkg-config-wrapper to work with chromiumos chroots
Revert 65580 - Fix pkg-config-wrapper to work with chromiumos chroots

Some pkg-config packages in chromium os (e.g. gtk) end up hard-coding libdir to be absolute (rather than relative to prefix), so it breaks builds from outside the chroot.
This works around it.

BUG=none
TEST=build with sysroot=/path/to/chromiumos/chroot/build/x86-generic

Review URL: http://codereview.chromium.org/4516002

TBR=piman@chromium.org
Review URL: http://codereview.chromium.org/4754002

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@65585 0039d316-1c4b-4281-b951-d872f2087c98

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