/usr/share/chromium/extensions/ublock-origin/js/profiler.js is in chromium-ublock-origin 1.13.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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µBlock - a browser extension to block requests.
Copyright (C) 2014 Raymond Hill
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
/* exported quickProfiler */
/******************************************************************************/
var quickProfiler = (function() {
'use strict';
var timer = window.performance || Date;
var time = 0;
var count = 0;
var tstart = 0;
var lastlog = timer.now();
var prompt = '';
var reset = function() {
time = 0;
count = 0;
tstart = 0;
};
var avg = function() {
return count > 0 ? time / count : 0;
};
var start = function(s) {
prompt = s || '';
tstart = timer.now();
};
var stop = function(period) {
if ( period === undefined ) {
period = 10000;
}
var now = timer.now();
count += 1;
time += (now - tstart);
if ( (now - lastlog) >= period ) {
console.log('µBlock> %s: %s ms (%d samples)', prompt, avg().toFixed(3), count);
lastlog = now;
}
};
return {
reset: reset,
start: start,
stop: stop
};
})();
/******************************************************************************/
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