Instrumenting opening password database to find jank

components/password_manager/core/browser/login_database.cc

Index: components/password_manager/core/browser/login_database.cc
diff --git a/components/password_manager/core/browser/login_database.cc b/components/password_manager/core/browser/login_database.cc
index ef739c3b74169c539761387af47218c2930a1421..a9d329f3d63f36b1bbc97022500f1b0882adf7c1 100644
--- a/components/password_manager/core/browser/login_database.cc
+++ b/components/password_manager/core/browser/login_database.cc
@@ -12,6 +12,7 @@
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/pickle.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
@@ -156,9 +157,15 @@ bool LoginDatabase::Init(const base::FilePath& db_path) {
   db_.set_exclusive_locking();
   db_.set_restrict_to_user();
 
-  if (!db_.Open(db_path)) {
-    LOG(WARNING) << "Unable to open the password store database.";
-    return false;
+  {
+    // TODO(vadimt): Remove ScopedTracker below once crbug.com/138903 is fixed.
+    tracked_objects::ScopedTracker tracking_profile(
+        FROM_HERE_WITH_EXPLICIT_FUNCTION("138903 LoginDatabase::Init db init"));
+
+    if (!db_.Open(db_path)) {
+      LOG(WARNING) << "Unable to open the password store database.";
+      return false;
+    }
   }
 
   sql::Transaction transaction(&db_);