Revert of Move LatencyInfo to ui/latency_info

ui/latency_info/latency_info_export.h

Index: ui/latency_info/latency_info_export.h
diff --git a/ui/latency_info/latency_info_export.h b/ui/latency_info/latency_info_export.h
deleted file mode 100644
index 864c9660d934345c8f0c476be750c4afd7b5ebcb..0000000000000000000000000000000000000000
--- a/ui/latency_info/latency_info_export.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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 UI_LATENCY_INFO_LATENCY_INFO_EXPORT_H_
-#define UI_LATENCY_INFO_LATENCY_INFO_EXPORT_H_
-
-#if defined(COMPONENT_BUILD)
-#if defined(WIN32)
-
-#if defined(LATENCY_INFO_IMPLEMENTATION)
-#define LATENCY_INFO_EXPORT __declspec(dllexport)
-#else
-#define LATENCY_INFO_EXPORT __declspec(dllimport)
-#endif  // defined(LATENCY_INFO_IMPLEMENTATION)
-
-#else  // defined(WIN32)
-#if defined(LATENCY_INFO_IMPLEMENTATION)
-#define LATENCY_INFO_EXPORT __attribute__((visibility("default")))
-#else
-#define LATENCY_INFO_EXPORT
-#endif
-#endif
-
-#else  // defined(COMPONENT_BUILD)
-#define LATENCY_INFO_EXPORT
-#endif
-
-#endif  // UI_LATENCY_INFO_LATENCY_INFO_EXPORT_H_