metrics: reduce perf periodic collection interval to 3 hours from 24

chrome/browser/metrics/perf_provider_chromeos.cc

Index: chrome/browser/metrics/perf_provider_chromeos.cc
diff --git a/chrome/browser/metrics/perf_provider_chromeos.cc b/chrome/browser/metrics/perf_provider_chromeos.cc
index 7fb80d430e069250cfe19fe41f2a312900ff3e33..e8c9386b8cd7ccf9052b44258f821aa77d6cc112 100644
--- a/chrome/browser/metrics/perf_provider_chromeos.cc
+++ b/chrome/browser/metrics/perf_provider_chromeos.cc
@@ -28,8 +28,7 @@ namespace {
 
 // Partition time since login into successive intervals of this size. In each
 // interval, pick a random time to collect a profile.
-// This interval is twenty-four hours.
-const size_t kPerfProfilingIntervalMs = 24 * 60 * 60 * 1000;
+const size_t kPerfProfilingIntervalMs = 3 * 60 * 60 * 1000;
 
 // Default time in seconds perf is run for.
 const size_t kPerfCommandDurationDefaultSeconds = 2;