blink/bindings: Actually record statistics for ParkableString.

Fix typo in https://chromium-review.googlesource.com/c/chromium/src/+/1323549

Bug: 877044
Change-Id: I377da8d819b3abbe27df8245e608e55c49759f05
Reviewed-on: https://chromium-review.googlesource.com/c/1329799Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Benoit L <lizeb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607261}

third_party/blink/renderer/platform/bindings/parkable_string_manager.cc

@@ -50,7 +50,7 @@ void ParkableStringManager::SetRendererBackgrounded(bool backgrounded) {
     if (!waiting_to_record_stats_) {
       task_runner->PostDelayedTask(
           FROM_HERE,
-          base::BindOnce(&ParkableStringManager::ParkAllIfRendererBackgrounded,
+          base::BindOnce(&ParkableStringManager::RecordStatistics,
                          base::Unretained(this)),
           base::TimeDelta::FromSeconds(10 + 30));
       waiting_to_record_stats_ = true;