void DataSourceLogger::Stop(const base::Closure& closure) {
VLOG(1) << "Stop() started";
data_source_->Stop(base::Bind(&LogAndRunStopClosure, closure));
void DataSourceLogger::Stop(const base::Closure& closure) {
VLOG(1) << "Stop() started";
data_source_->Stop(base::Bind(&LogAndRunStopClosure, closure));