Disable ThrottleInstallingServiceWorker feature.

Bug: 1124632,1035448
Change-Id: Id12d83787b2f3aa815737ec0b263641e0ed051e4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2392404Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Commit-Queue: Ben Kelly <wanderview@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804280}

third_party/blink/common/features.cc

@@ -656,7 +656,7 @@ const base::FeatureParam<AlignFontDisplayAutoTimeoutWithLCPGoalMode>
 // in background main frames.  In addition, trials showed that this
 // did not cause excessive install delays or timeouts.
 const base::Feature kThrottleInstallingServiceWorker{
-    "ThrottleInstallingServiceWorker", base::FEATURE_ENABLED_BY_DEFAULT};
+    "ThrottleInstallingServiceWorker", base::FEATURE_DISABLED_BY_DEFAULT};
 const base::FeatureParam<int> kInstallingServiceWorkerOutstandingThrottledLimit{
     &kThrottleInstallingServiceWorker, "limit", 3};