Backed out changeset bba5c678e394 (bug 1874215) for causing xpchsell …

…failures on test_register_app_services_logger.js. CLOSED TREE

services/common/app_services_logger/src/lib.rs

@@ -11,11 +11,13 @@ extern crate cstr;
 extern crate xpcom;
 
 use golden_gate::log::LogSink;
+use log;
 use nserror::{nsresult, NS_OK};
 use nsstring::nsAString;
 use once_cell::sync::Lazy;
 use std::os::raw::c_char;
 use std::{
+    cmp,
     collections::HashMap,
     sync::{
         atomic::{AtomicBool, Ordering},
@@ -44,6 +46,11 @@ impl AppServicesLogger {
     xpcom_method!(register => Register(target: *const nsAString, logger: *const mozIServicesLogSink));
     fn register(&self, target: &nsAString, logger: &mozIServicesLogSink) -> Result<(), nsresult> {
         let log_sink_logger = LogSink::with_logger(Some(logger))?;
+        let max_level = cmp::max(log::max_level(), log_sink_logger.max_level);
+
+        // Note: This will only work if the max_level is lower than the compile-time
+        // max_level_* filter.
+        log::set_max_level(max_level);
 
         ensure_observing_shutdown();