Record metrics for slow startups

chrome/browser/safe_browsing/safe_browsing_service.cc

Index: chrome/browser/safe_browsing/safe_browsing_service.cc
diff --git a/chrome/browser/safe_browsing/safe_browsing_service.cc b/chrome/browser/safe_browsing/safe_browsing_service.cc
index b957300e6a2278adcc248be6119ebcfb90716bcc..a2fc083d3b9fbb645bb9766df63eab523153d66b 100644
--- a/chrome/browser/safe_browsing/safe_browsing_service.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_service.cc
@@ -35,6 +35,7 @@
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/common/startup_metric_utils.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
@@ -164,6 +165,9 @@ SafeBrowsingService::~SafeBrowsingService() {
 }
 
 void SafeBrowsingService::Initialize() {
+  startup_metric_utils::ScopedSlowStartupUMA
+      scoped_timer("Startup.SlowStartupSafeBrowsingServiceInitialize");

[Scott Hess - ex-Googler, 2013/01/07 21:47:25]

I'm less certain about what this will measure.  I wouldn't be surprised if the
values turn out to be very small.

[jeremy, 2013/01/10 15:08:39]

Neither would I, but I think if nothing else it'll be useful to contrast against
the other metrics.

+
   url_request_context_getter_ =
       new SafeBrowsingURLRequestContextGetter(this);