telemetry: Disable top sites in thread_times benchmarks.

tools/perf/benchmarks/thread_times.py

Index: tools/perf/benchmarks/thread_times.py
diff --git a/tools/perf/benchmarks/thread_times.py b/tools/perf/benchmarks/thread_times.py
index 641ffebf76c9d41e7db06d882ba81d248c9a47af..c03706b431682722515d1419e913c2b799e1a16e 100644
--- a/tools/perf/benchmarks/thread_times.py
+++ b/tools/perf/benchmarks/thread_times.py
@@ -26,6 +26,9 @@ class _ThreadTimes(perf_benchmark.PerfBenchmark):
     # Default to only reporting per-frame metrics.
     return 'per_second' not in value.name
 
+  def SetExtraBrowserOptions(self, options):
+    silk_flags.CustomizeBrowserOptionsForThreadTimes(options)
+
   def CreatePageTest(self, options):
     return thread_times.ThreadTimes(options.report_silk_details)
 
@@ -84,6 +87,7 @@ class ThreadTimesCompositorCases(_ThreadTimes):
   page_set = page_sets.ToughCompositorCasesPageSet
 
   def SetExtraBrowserOptions(self, options):
+    super(ThreadTimesCompositorCases, self).SetExtraBrowserOptions(options)
     silk_flags.CustomizeBrowserOptionsForSoftwareRasterization(options)
 
   @classmethod