Update UMA user actions parsing, primarily to include WebUI metrics.

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

Index: chrome/browser/ui/webui/options/core_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/core_options_handler.cc b/chrome/browser/ui/webui/options/core_options_handler.cc
index 83cdafa169140d591d45b0edcfcb4be46c0c9d1b..1980624a308bb6216c2bbb1f6d5d46d5d24ba84f 100644
--- a/chrome/browser/ui/webui/options/core_options_handler.cc
+++ b/chrome/browser/ui/webui/options/core_options_handler.cc
@@ -181,7 +181,7 @@ void CoreOptionsHandler::ClearPref(const std::string& pref_name,
   pref_service->ScheduleSavePersistentPrefs();
 
   if (!metric.empty())
-    UserMetricsRecordAction(UserMetricsAction(metric.c_str()));
+    UserMetrics::RecordComputedAction(metric);
 }
 
 void CoreOptionsHandler::ProcessUserMetric(const Value* value,
@@ -196,7 +196,7 @@ void CoreOptionsHandler::ProcessUserMetric(const Value* value,
     metric_string += bool_value ? "_Enable" : "_Disable";
   }
 
-  UserMetricsRecordAction(UserMetricsAction(metric_string.c_str()));
+  UserMetrics::RecordComputedAction(metric_string);
 }
 
 void CoreOptionsHandler::StopObservingPref(const std::string& path) {
@@ -346,7 +346,7 @@ void CoreOptionsHandler::HandleClearPref(const ListValue* args) {
 void CoreOptionsHandler::HandleUserMetricsAction(const ListValue* args) {
   std::string metric = UTF16ToUTF8(ExtractStringValue(args));
   if (!metric.empty())
-    UserMetricsRecordAction(UserMetricsAction(metric.c_str()));
+    UserMetrics::RecordComputedAction(metric);
 }
 
 void CoreOptionsHandler::UpdateClearPluginLSOData() {