tracing: restructure to the components/tracing folder

components/tracing/tracing_switches.h

Index: components/tracing/tracing_switches.h
diff --git a/components/tracing/tracing_switches.h b/components/tracing/tracing_switches.h
deleted file mode 100644
index 388f97be338d3012259ded9a6e09cd0fafb145e1..0000000000000000000000000000000000000000
--- a/components/tracing/tracing_switches.h
+++ /dev/null
@@ -1,23 +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.
-
-#ifndef COMPONENTS_TRACING_TRACING_SWITCHES_H_
-#define COMPONENTS_TRACING_TRACING_SWITCHES_H_
-
-#include "components/tracing/tracing_export.h"
-
-namespace switches {
-
-TRACING_EXPORT extern const char kTraceConfigFile[];
-TRACING_EXPORT extern const char kTraceShutdown[];
-TRACING_EXPORT extern const char kTraceShutdownFile[];
-TRACING_EXPORT extern const char kTraceStartup[];
-TRACING_EXPORT extern const char kTraceStartupDuration[];
-TRACING_EXPORT extern const char kTraceStartupFile[];
-TRACING_EXPORT extern const char kTraceToConsole[];
-TRACING_EXPORT extern const char kTraceUploadURL[];
-
-}  // namespace switches
-
-#endif  // COMPONENTS_TRACING_TRACING_SWITCHES_H_