Add UMA metrics and histograms for locally managed users.

chrome/browser/ui/webui/options/managed_user_settings_handler.cc

Index: chrome/browser/ui/webui/options/managed_user_settings_handler.cc
===================================================================
--- chrome/browser/ui/webui/options/managed_user_settings_handler.cc	(revision 177135)
+++ chrome/browser/ui/webui/options/managed_user_settings_handler.cc	(working copy)
@@ -4,13 +4,21 @@
 
 #include "chrome/browser/ui/webui/options/managed_user_settings_handler.h"
 
+#include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
+#include "base/metrics/histogram.h"
+#include "base/time.h"
 #include "base/values.h"
+#include "chrome/browser/first_run/first_run.h"
 #include "chrome/common/chrome_switches.h"
+#include "content/public/browser/user_metrics.h"
+#include "content/public/browser/web_ui.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 
+using content::UserMetricsAction;
+
 namespace options {
 
 ManagedUserSettingsHandler::ManagedUserSettingsHandler() {
@@ -19,6 +27,11 @@
 ManagedUserSettingsHandler::~ManagedUserSettingsHandler() {
 }
 
+void ManagedUserSettingsHandler::InitializePage() {
+  start_time_ = base::TimeTicks::Now();
+  content::RecordAction(UserMetricsAction("ManagedMode_OpenSettings"));
+}
+
 void ManagedUserSettingsHandler::GetLocalizedValues(
     base::DictionaryValue* localized_strings) {
   DCHECK(localized_strings);
@@ -52,4 +65,29 @@
           switches::kEnableManagedUsers));
 }
 
+void ManagedUserSettingsHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("confirmManagedUserSettings",
+      base::Bind(&ManagedUserSettingsHandler::ConfirmChanges,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("cancelManagedUserSettings",
+      base::Bind(&ManagedUserSettingsHandler::CancelChanges,
+                 base::Unretained(this)));
+}
+
+void ManagedUserSettingsHandler::ConfirmChanges(const ListValue* args) {
+  // TODO(pamg): Is there any way we can distinguish an initial configuration
+  // step from later adjustments?
+  if (first_run::IsChromeFirstRun()) {
+    UMA_HISTOGRAM_LONG_TIMES("ManagedMode.UserSettingsFirstRunTime",
+                             base::TimeTicks::Now() - start_time_);
+  } else {
+    UMA_HISTOGRAM_LONG_TIMES("ManagedMode.UserSettingsModifyTime",
+                             base::TimeTicks::Now() - start_time_);
+  }
+}
+
+void ManagedUserSettingsHandler::CancelChanges(const ListValue* args) {
+  content::RecordAction(UserMetricsAction("ManagedMode_CancelSettings"));
+}
+
 }  // namespace options