Log UMA metrics for multiprofile actions.

ash/multi_profile_uma.cc

Index: ash/multi_profile_uma.cc
diff --git a/ash/multi_profile_uma.cc b/ash/multi_profile_uma.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9424d03bfbfc48b6dca14591a6acebbe458e2052
--- /dev/null
+++ b/ash/multi_profile_uma.cc
@@ -0,0 +1,34 @@
+// Copyright 2013 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.
+
+#include "ash/multi_profile_uma.h"
+
+#include "base/metrics/histogram.h"
+
+namespace {
+
+
+}  // namespace

[oshima, 2013/09/28 11:45:19]

remove empty namespace block?

[Tim Song, 2013/09/30 17:19:39]

Done.

+
+namespace ash {
+
+MultiProfileUMA::MultiProfileUMA() {}
+
+MultiProfileUMA::~MultiProfileUMA() {}
+
+// static
+void MultiProfileUMA::RecordSwitchActiveUser(SwitchActiveUserAction action) {
+  UMA_HISTOGRAM_ENUMERATION("MultiProfile.SwitchActiveUserUIPath",
+                            action,
+                            NUM_SWITCH_ACTIVE_USER_ACTIONS);
+}
+
+// static
+void MultiProfileUMA::RecordSigninUser(SigninUserAction action) {
+  UMA_HISTOGRAM_ENUMERATION("MultiProfile.SigninUserUIPath",
+                            action,
+                            NUM_SIGNIN_USER_ACTIONS);
+}
+
+}  // namespace ash