public function beforeContainerCreated()
 {
     $this->vars->reload();
     if ($this->vars->queryParamOverride) {
         foreach ($this->vars->queryParamOverride as $key => $value) {
             $_GET[$key] = $value;
         }
     }
     if ($this->vars->globalsOverride) {
         foreach ($this->vars->globalsOverride as $key => $value) {
             $GLOBALS[$key] = $value;
         }
     }
     if ($this->vars->hostOverride) {
         \Piwik\Url::setHost($this->vars->hostOverride);
     }
     if ($this->vars->useXhprof) {
         \Piwik\Profiler::setupProfilerXHProf($mainRun = false, $setupDuringTracking = true);
     }
     \Piwik\Cache\Backend\File::$invalidateOpCacheBeforeRead = true;
 }