Make stack sampling profiler sample beyond startup.

components/metrics/child_call_stack_profile_collector_unittest.cc

Index: components/metrics/child_call_stack_profile_collector_unittest.cc
diff --git a/components/metrics/child_call_stack_profile_collector_unittest.cc b/components/metrics/child_call_stack_profile_collector_unittest.cc
index 9a3a67af92d5be1ddd7012df5ab6f7a7a7c1c44a..051ef38aa2ec11ef9be122225250f6301ba728b0 100644
--- a/components/metrics/child_call_stack_profile_collector_unittest.cc
+++ b/components/metrics/child_call_stack_profile_collector_unittest.cc
@@ -60,7 +60,9 @@ class ChildCallStackProfileCollectorTest : public testing::Test {
     base::StackSamplingProfiler::CallStackProfiles profiles;
     for (size_t i = 0; i < profile_count; ++i)
       profiles.push_back(base::StackSamplingProfiler::CallStackProfile());
-    child_collector_.GetProfilerCallback(params).Run(std::move(profiles));
+    base::StackSamplingProfiler::SamplingParams sampling_params;
+    child_collector_.GetProfilerCallback(params).Run(std::move(profiles),
+                                                     &sampling_params);
   }
 
   const std::vector<ChildCallStackProfileCollector::ProfilesState>&