A blind fix for Issue 18837 (and a build fix for VS2008) To read this crash dump, this issue is caused by my mistake that this jumplist.cc calls "icon_urls_.front()" for an empty list. This change added some checks that verifies a std::list has one or more items. This change also fixes linker errors because of conflicted symbols: CLSID_DestinationList and CLSID_EnumerableObjectCollection, which is caused by my mistake that I forgot removing "EXTERN_C" keywords when I moved them into an anonymous namespace. This change removes the "EXTERN_C" keywords for VS2008.
A blind fix for Issue 18837 (and a build fix for VS2008)
To read this crash dump, this issue is caused by my mistake that this jumplist.cc calls "icon_urls_.front()" for an empty list.
This change added some checks that verifies a std::list has one or more items.
This change also fixes linker errors because of conflicted symbols: CLSID_DestinationList and CLSID_EnumerableObjectCollection, which is caused by my mistake that I forgot removing "EXTERN_C" keywords when I moved them into an anonymous namespace. This change removes the "EXTERN_C" keywords for VS2008.

BUG=18837 "Crash - JumpList::OnFavIconDataAvailable(int,bool,scoped_refptr<RefCountedVector<unsigned char> >,bool,GURL)"
TEST=Show JumpList on Windows 7.
TEST=Build Chromium with VS2008.
Review URL: http://codereview.chromium.org/159853

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@22907 0039d316-1c4b-4281-b951-d872f2087c98

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