Split UserMetrics into API vs. implementation. Move API to content/public.

chrome/browser/ui/webui/metrics_handler.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/webui/metrics_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/metrics/metric_event_duration_details.h"
 #include "chrome/browser/ui/webui/chrome_web_ui.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/browser/tab_contents/tab_contents.h"
-#include "content/browser/user_metrics.h"
 #include "content/public/browser/notification_service.h"
+#include "content/public/browser/user_metrics.h"
 
 using base::ListValue;
+using content::UserMetricsAction;
 
 MetricsHandler::MetricsHandler() {}
 MetricsHandler::~MetricsHandler() {}
 
 void MetricsHandler::RegisterMessages() {
   web_ui_->RegisterMessageCallback(
       "metricsHandler:recordAction",
       base::Bind(&MetricsHandler::HandleRecordAction, base::Unretained(this)));
   web_ui_->RegisterMessageCallback(
       "metricsHandler:recordInHistogram",
       base::Bind(&MetricsHandler::HandleRecordInHistogram,
                  base::Unretained(this)));
   web_ui_->RegisterMessageCallback(
       "metricsHandler:logEventTime",
       base::Bind(&MetricsHandler::HandleLogEventTime, base::Unretained(this)));
 }
 
 void MetricsHandler::HandleRecordAction(const ListValue* args) {
   std::string string_action = UTF16ToUTF8(ExtractStringValue(args));
-  UserMetrics::RecordComputedAction(string_action);
+  content::RecordComputedAction(string_action);
 }
 
 void MetricsHandler::HandleRecordInHistogram(const ListValue* args) {
   std::string histogram_name;
   double value;
   double boundary_value;
   if (!args->GetString(0, &histogram_name) ||
       !args->GetDouble(1, &value) ||
       !args->GetDouble(2, &boundary_value)) {
     NOTREACHED();
@@ skipping 45 matching lines @@
     // The new tab page has finished loading; reset it.
     tab->set_new_tab_start_time(base::TimeTicks());
   } else {
     NOTREACHED();
   }
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_METRIC_EVENT_DURATION,
       content::Source<TabContents>(tab),
       content::Details<MetricEventDurationDetails>(&details));
 }