Deleted OS_WIN and all Windows specific files from base.

base/trace_event/trace_event_etw_export_win.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.
-
-// This file contains the Windows-specific exporting to ETW.
-#ifndef BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_
-#define BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_
-
-#include "base/base_export.h"
-#include "base/trace_event/trace_event_impl.h"
-
-// Fwd.
-template <typename Type>
-struct StaticMemorySingletonTraits;
-
-namespace base {
-namespace trace_event {
-
-class BASE_EXPORT TraceEventETWExport {
- public:
-  ~TraceEventETWExport();
-
-  // Retrieves the singleton.
-  // Note that this may return NULL post-AtExit processing.
-  static TraceEventETWExport* GetInstance();
-
-  // Enables/disables exporting of events to ETW. If disabled,
-  // AddEvent and AddCustomEvent will simply return when called.
-  static void EnableETWExport();
-  static void DisableETWExport();
-
-  static bool isETWExportEnabled() {
-    return (GetInstance() && GetInstance()->ETWExportEnabled_);
-  }
-
-  // Exports an event to ETW. This is mainly used in
-  // TraceLog::AddTraceEventWithThreadIdAndTimestamp to export internal events.
-  static void AddEvent(
-      char phase,
-      const unsigned char* category_group_enabled,
-      const char* name,
-      unsigned long long id,
-      int num_args,
-      const char** arg_names,
-      const unsigned char* arg_types,
-      const unsigned long long* arg_values,
-      const scoped_refptr<ConvertableToTraceFormat>* convertable_values);
-
-  // Exports an event to ETW. This should be used when exporting an event only
-  // to ETW. Supports three arguments to be passed to ETW.
-  // TODO(georgesak): Allow different providers.
-  static void AddCustomEvent(const char* name,
-                             char const* phase,
-                             const char* arg_name_1,
-                             const char* arg_value_1,
-                             const char* arg_name_2,
-                             const char* arg_value_2,
-                             const char* arg_name_3,
-                             const char* arg_value_3);
-
-  void Resurrect();
-
- private:
-  bool ETWExportEnabled_;
-  // Ensure only the provider can construct us.
-  friend struct StaticMemorySingletonTraits<TraceEventETWExport>;
-  TraceEventETWExport();
-
-  DISALLOW_COPY_AND_ASSIGN(TraceEventETWExport);
-};
-
-}  // namespace trace_event
-}  // namespace base
-
-#endif  // BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_