Migrate page_load_metrics out of components.

components/page_load_metrics/common/page_load_metrics_messages.h

Index: components/page_load_metrics/common/page_load_metrics_messages.h
diff --git a/components/page_load_metrics/common/page_load_metrics_messages.h b/components/page_load_metrics/common/page_load_metrics_messages.h
deleted file mode 100644
index d71a3763a0cdc5a529f58b4431c335db03559073..0000000000000000000000000000000000000000
--- a/components/page_load_metrics/common/page_load_metrics_messages.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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.
-
-// IPC messages for page load metrics.
-// Multiply-included message file, hence no include guard.
-
-#include "base/time/time.h"
-#include "components/page_load_metrics/common/page_load_timing.h"
-#include "ipc/ipc_message_macros.h"
-
-#define IPC_MESSAGE_START PageLoadMetricsMsgStart
-
-// See comments in page_load_timing.h for details on each field.
-IPC_STRUCT_TRAITS_BEGIN(page_load_metrics::PageLoadTiming)
-  IPC_STRUCT_TRAITS_MEMBER(navigation_start)
-  IPC_STRUCT_TRAITS_MEMBER(response_start)
-  IPC_STRUCT_TRAITS_MEMBER(dom_loading)
-  IPC_STRUCT_TRAITS_MEMBER(dom_content_loaded_event_start)
-  IPC_STRUCT_TRAITS_MEMBER(load_event_start)
-  IPC_STRUCT_TRAITS_MEMBER(first_layout)
-  IPC_STRUCT_TRAITS_MEMBER(first_paint)
-  IPC_STRUCT_TRAITS_MEMBER(first_text_paint)
-  IPC_STRUCT_TRAITS_MEMBER(first_image_paint)
-  IPC_STRUCT_TRAITS_MEMBER(first_contentful_paint)
-  IPC_STRUCT_TRAITS_MEMBER(parse_start)
-  IPC_STRUCT_TRAITS_MEMBER(parse_stop)
-  IPC_STRUCT_TRAITS_MEMBER(parse_blocked_on_script_load_duration)
-  IPC_STRUCT_TRAITS_MEMBER(
-      parse_blocked_on_script_load_from_document_write_duration)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(page_load_metrics::PageLoadMetadata)
-  IPC_STRUCT_TRAITS_MEMBER(behavior_flags)
-IPC_STRUCT_TRAITS_END()
-
-// Sent from renderer to browser process when the PageLoadTiming for the
-// associated frame changed.
-IPC_MESSAGE_ROUTED2(PageLoadMetricsMsg_TimingUpdated,
-                    page_load_metrics::PageLoadTiming,
-                    page_load_metrics::PageLoadMetadata)