trace_event: distinguish between scoped begin/end and global start/finish events

base/debug/trace_event_win.h

 // Copyright (c) 2011 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 declarations for trace_event.h.
 #ifndef BASE_DEBUG_TRACE_EVENT_WIN_H_
 #define BASE_DEBUG_TRACE_EVENT_WIN_H_
 #pragma once
 
 #include <string>
@@ skipping 89 matching lines @@
 
 // The ETW event class GUID for 64 bit events.
 BASE_EXPORT extern const GUID kTraceEventClass64;
 
 // The ETW event types, IDs 0x00-0x09 are reserved, so start at 0x10.
 const base::win::EtwEventType kTraceEventTypeBegin = 0x10;
 const base::win::EtwEventType kTraceEventTypeEnd = 0x11;
 const base::win::EtwEventType kTraceEventTypeInstant = 0x12;
 
 // If this flag is set in enable flags
-enum TraceEventFlags {
+enum TraceEventETWFlags {
   CAPTURE_STACK_TRACE = 0x0001,
 };
 
 // The event format consists of:
 // The "name" string as a zero-terminated ASCII string.
 // The id pointer in the machine bitness.
 // The "extra" string as a zero-terminated ASCII string.
 // Optionally the stack trace, consisting of a DWORD "depth", followed
 //    by an array of void* (machine bitness) of length "depth".
 
 }  // namespace debug
 }  // namespace base
 
 #endif  // BASE_DEBUG_TRACE_EVENT_WIN_H_