Changed StartMouseInitiatedRemoveTabAnimation to use tab data indices rather than Model indices when adjusting mini-tab/non-mini-tab padding.
Changed StartMouseInitiatedRemoveTabAnimation to use tab data indices rather than Model indices when adjusting mini-tab/non-mini-tab padding.

BUG=36504
TEST=See bug. Start Chrome and open a new tab. Pin the first one and then close it with a middle mouse click. Now look carefully at the left edge of the tab and open a new tab. The left most tab should not shift at all.
Review URL: http://codereview.chromium.org/7307028

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@91698 0039d316-1c4b-4281-b951-d872f2087c98

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