docshell/base/timeline/CompositeTimelineMarker.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_CompositeTimelineMarker_h_
   8 #define mozilla_CompositeTimelineMarker_h_
   9
  10 #include "TimelineMarker.h"
  11 #include "mozilla/dom/ProfileTimelineMarkerBinding.h"
  12
  13 namespace mozilla {
  14
  15 class CompositeTimelineMarker : public TimelineMarker {
  16  public:
  17   CompositeTimelineMarker(const TimeStamp& aTime,
  18                           MarkerTracingType aTracingType)
  19       : TimelineMarker("Composite", aTime, aTracingType) {
  20     // Even though these markers end up being created on the main thread in the
  21     // content or chrome processes, they actually trace down code in the
  22     // compositor parent process. All the information for creating these markers
  23     // is sent along via IPC to an nsView when a composite finishes.
  24     // Mark this as 'off the main thread' to style it differently in frontends.
  25     SetOffMainThread(true);
  26   }
  27 };
  28
  29 }  // namespace mozilla
  30
  31 #endif  // mozilla_CompositeTimelineMarker_h_