It is quite complex to explain but I will try

Google has left open the option for any extension to write to the %ProgramFiles%\Google\Chrome\Application[version]\resources.pak file and the normal content is

try{(function(d,u){function k(a){for(var b=0;b<a.length;b++){var e=b,c;c=a[b];if("string"===typeof c)a:{if(!v(c))for(var g=0;gd-g?b&&b(!0):(c["BL_ST_"+a+"_"+e]=d,b&&b(!1),f(c)):(c["BL_ST_"+a+"_"+e]=d,f(c),b&&b(!1))})}function h(a){chrome.storage.local.get("BLGC_STORAGE",function(b){a&&a(b.BLGC_STORAGE)})}function f(a){var b={};b.BLGC_STORAGE=a;chrome.storage.local.set(b,function(){})}function q(a){try{if(0==a.length)return{hostName:""};var b=u.createElement("a");0!=a.indexOf("http")&&(a="http://"+a);b.href=a;return b}catch(e){}return{hostname:a}}function y(a){a=a.toLowerCase();for(var b=0;b