Slow Reports: add more categories for service workers.

Change-Id: I47993d4e2537948db5844621050cd1ebdb977748
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1635082Reviewed-by: oysteine <oysteine@chromium.org>
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664888}

content/browser/tracing/background_tracing_config_impl.cc

@@ -366,7 +366,7 @@ TraceConfig BackgroundTracingConfigImpl::GetConfigForCategoryPreset(
     case BackgroundTracingConfigImpl::CategoryPreset::BENCHMARK_SERVICEWORKER:
       return TraceConfig(
           "benchmark,toplevel,ipc,base,ServiceWorker,CacheStorage,Blob,"
-          "loader,loading,navigation,blink.user_timing,"
+          "loading,mojom,navigation,renderer,blink,blink_gc,blink.user_timing,"
           "disabled-by-default-network",
           record_mode);
     case BackgroundTracingConfigImpl::CategoryPreset::BENCHMARK_POWER: