Add LOCAL_ prefix to non-UMA histogram macros.

crypto/nss_util.cc

Index: crypto/nss_util.cc
diff --git a/crypto/nss_util.cc b/crypto/nss_util.cc
index 062bcb51a3c4565383f2bc02ddf46699009774da..f0c726d4796437ef9cf2046e21dbc75ffe0009ec 100644
--- a/crypto/nss_util.cc
+++ b/crypto/nss_util.cc
@@ -750,12 +750,12 @@ class NSSInitSingleton {
                            0, NSS_USE_ALG_IN_CERT_SIGNATURE);
 
     // The UMA bit is conditionally set for this histogram in
-    // chrome/common/startup_metric_utils.cc .
-    HISTOGRAM_CUSTOM_TIMES("Startup.SlowStartupNSSInit",
-                           base::TimeTicks::Now() - start_time,
-                           base::TimeDelta::FromMilliseconds(10),
-                           base::TimeDelta::FromHours(1),
-                           50);
+    // components/startup_metric_utils.cc .
+    LOCAL_HISTOGRAM_CUSTOM_TIMES("Startup.SlowStartupNSSInit",
+                                 base::TimeTicks::Now() - start_time,
+                                 base::TimeDelta::FromMilliseconds(10),
+                                 base::TimeDelta::FromHours(1),
+                                 50);
   }
 
   // NOTE(willchan): We don't actually execute this code since we leak NSS to