[Sync] Don't early out of ReEncryptEverything when a datatype is missing.
[Sync] Don't early out of ReEncryptEverything when a datatype is missing.

This happens upon restart when we upgrade and have a new type. We won't have
the root for that type at the time we refresh encryption, so just skip it for
now.
 
BUG=99219
TEST=Set up sync with encryption everything on a new client. Restart with
--enable-sync-tabs on and ensure we don't hit a NOTREACHED.


Review URL: http://codereview.chromium.org/8159005

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@104601 0039d316-1c4b-4281-b951-d872f2087c98

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