Remove the wrapper functions content::RecordAction et al

content/public/browser/user_metrics.h

-// Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_USER_METRICS_H_
-#define CONTENT_PUBLIC_BROWSER_USER_METRICS_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "base/metrics/user_metrics_action.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-// TODO(beaudoin): Get rid of these methods now that the base:: version does
-// thread hopping. Tracked in crbug.com/601483.
-// Wrappers around functions defined in base/metrics/user_metrics.h, refer to
-// that header for full documentation. These wrappers can be called from any
-// thread (they will post back to the UI thread to do the recording).
-
-CONTENT_EXPORT void RecordAction(const base::UserMetricsAction& action);
-CONTENT_EXPORT void RecordComputedAction(const std::string& action);
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_BROWSER_USER_METRICS_H_