Convert PageLoadMetrics to Mojo

components/page_load_metrics/common/page_load_timing.h

 // Copyright 2015 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_PAGE_LOAD_METRICS_COMMON_PAGE_LOAD_TIMING_H_
 #define COMPONENTS_PAGE_LOAD_METRICS_COMMON_PAGE_LOAD_TIMING_H_
 
 #include "base/optional.h"
 #include "base/time/time.h"
 #include "third_party/WebKit/public/platform/WebLoadingBehaviorFlag.h"
@@ skipping 62 matching lines @@
   // that was inserted from document.write. This duration must be less than or
   // equal to parse_blocked_on_script_load_duration. Note that this value may be
   // updated multiple times during the period between parse_start and
   // parse_stop. Note that some uncommon cases where scripts are loaded via
   // document.write are not currently covered by this field. See crbug/600711
   // for details.
   base::Optional<base::TimeDelta>
       parse_blocked_on_script_load_from_document_write_duration;
 
   // If you add additional members, also be sure to update operator==,
-  // page_load_metrics_messages.h, and IsEmpty().
+  // page_load_metrics_param_traits.h, and IsEmpty().
 };
 
 struct PageLoadMetadata {
   PageLoadMetadata();
   bool operator==(const PageLoadMetadata& other) const;
   // These are packed blink::WebLoadingBehaviorFlag enums.
   int behavior_flags = blink::WebLoadingBehaviorNone;
 };
 
 }  // namespace page_load_metrics
 
 #endif  // COMPONENTS_PAGE_LOAD_METRICS_COMMON_PAGE_LOAD_TIMING_H_