A quick fix for Issue 18353. This is my stupid mistake that I forgot removing the platform-dependent code in our renderer code. This change just add defined(OS_MACOSX) instead of removing #ifdef blocks since they are used by Chrome OS.
A quick fix for Issue 18353.
This is my stupid mistake that I forgot removing the platform-dependent code in our renderer code.
This change just add defined(OS_MACOSX) instead of removing #ifdef blocks since they are used by Chrome OS.

BUG=18353 "Regression: Arrow Keys and Page Up/Down Keys Have No Affect"
TEST=Type an arrow key in a web page and see it scrolls the page.
Review URL: http://codereview.chromium.org/159839

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@22601 0039d316-1c4b-4281-b951-d872f2087c98

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