Move DocumentSubresourceFilter to core/common.

components/subresource_filter/content/common/document_load_statistics.h

-// Copyright 2016 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 COMPONENTS_SUBRESOURCE_FILTER_CONTENT_COMMON_DOCUMENT_LOAD_STATISTICS_H_
-#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_COMMON_DOCUMENT_LOAD_STATISTICS_H_
-
-#include <stdint.h>
-
-#include "base/time/time.h"
-
-namespace subresource_filter {
-
-// Contains statistics and performance metrics collected by the
-// DocumentSubresourceFilter.
-struct DocumentLoadStatistics {
-  // The number of subresource loads that went through the
-  // DocumentSubresouceFilter::allowLoad method.
-  int32_t num_loads_total = 0;
-
-  // Statistics on the number of subresource loads that were evaluated, were
-  // matched by filtering rules, and were disallowed, respectively, during the
-  // lifetime of a DocumentSubresourceFilter.
-  int32_t num_loads_evaluated = 0;
-  int32_t num_loads_matching_rules = 0;
-  int32_t num_loads_disallowed = 0;
-
-  // Total time spent in allowLoad() calls while evaluating subresource loads.
-  base::TimeDelta evaluation_total_wall_duration;
-  base::TimeDelta evaluation_total_cpu_duration;
-};
-
-}  // namespace subresource_filter
-
-#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_COMMON_DOCUMENT_LOAD_STATISTICS_H_