Move base to DEPS

base/metrics/user_metrics_action.h

-// Copyright 2014 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 BASE_METRICS_USER_METRICS_ACTION_H_
-#define BASE_METRICS_USER_METRICS_ACTION_H_
-
-namespace base {
-
-// UserMetricsAction exists purely to standardize on the parameters passed to
-// UserMetrics. That way, our toolset can scan the source code reliable for
-// constructors and extract the associated string constants.
-// WARNING: When using UserMetricsAction, UserMetricsAction and a string literal
-// parameter must be on the same line, e.g.
-//   RecordAction(UserMetricsAction("my extremely long action name"));
-// or
-//   RenderThread::Get()->RecordAction(
-//       UserMetricsAction("my extremely long action name"));
-// because otherwise our processing scripts won't pick up on new actions.
-// Please see tools/metrics/actions/extract_actions.py for details.
-struct UserMetricsAction {
-  const char* str_;
-  explicit UserMetricsAction(const char* str) : str_(str) {}
-};
-
-}  // namespace base
-
-#endif  // BASE_METRICS_USER_METRICS_ACTION_H_