Enable win64 stub library generation. Previously, /machine:X86 was the hardcoded lib option. This patch enables /machine:X64, if the file type parameter is 'windows_lib_x64'. To unblock media <-> ffmpeg win64 linking, this patch along with a separate patch to ffmpeg.gyp will be necessary.
Enable win64 stub library generation.
Previously, /machine:X86 was the hardcoded lib option.
This patch enables /machine:X64, if the file type parameter is 'windows_lib_x64'. To unblock media <-> ffmpeg win64 linking, this patch along with a separate patch to ffmpeg.gyp will be necessary.

BUG=172938, 166496
TEST=win_rel try bot (win32). Private with additional fix to use 'windows_lib_x64' for win64 in ffmpeg.gyp eliminates media<->ffmpeg link errors in win64. Unittests.

Review URL: https://chromiumcodereview.appspot.com/12087128

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@180184 0039d316-1c4b-4281-b951-d872f2087c98

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