UMA metrics - number of accounts per profile and account reconciler.

components/signin/core/browser/signin_metrics.h

Index: components/signin/core/browser/signin_metrics.h
diff --git a/components/signin/core/browser/signin_metrics.h b/components/signin/core/browser/signin_metrics.h
new file mode 100644
index 0000000000000000000000000000000000000000..e2af6b089270529882fbd8f784984d302942e01c
--- /dev/null
+++ b/components/signin/core/browser/signin_metrics.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_
+#define COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_
+
+#include <stddef.h>

[Alexei Svitkine (slow), 2014/05/08 14:39:29]

Nit: I don't think this is needed.

[Mike Lerman, 2014/05/08 18:23:14]

Done.

+
+namespace signin_metrics {

[Alexei Svitkine (slow), 2014/05/08 14:39:29]

Nit: Add an empty line after this.

[Mike Lerman, 2014/05/08 18:23:14]

Done.

+  // Log to UMA histograms and UserCounts stats about a single execution of the
+  // AccountReconciler.
+  // |total_number_accounts| - How many accounts are in the browser for this
+  //                           profile.
+  // |count_added_to_cookie_jar| - How many accounts were in the browser but not
+  //                               the cookie jar.
+  // |count_added_to_token| - How may accounts were in the cookie jar but not in
+  //                          the browser.
+  // |primary_accounts_same| - False if the primary account for the cookie jar
+  //                           and the token service were different; else true.
+  // |is_first_reconcile| - True if these stats are from the first execution of
+  //                        the AccountReconcilor.
+  void LogSigninAccountReconciliation(int total_number_accounts,

[Alexei Svitkine (slow), 2014/05/08 14:39:29]

Nit: Don't indent in a namespace.

[Mike Lerman, 2014/05/08 18:23:14]

Done.

+                                      int count_added_to_cookie_jar,
+                                      int count_added_to_token,
+                                      bool primary_accounts_same,
+                                      bool is_first_reconcile);
+
+}  // namespace signin_metrics
+
+
+#endif  // COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_