author Dennis Jackson <>
Sun, 26 Mar 2023 07:31:40 +0000
changeset 657950 dee1eb3308521b4cb7c8a3afe44520efcf582650
parent 595852 31bba792417df1e319efdac2ffdde3469ac89bc0
permissions -rw-r--r--
Bug 1822876: Add H3 ECH Telemetry. r=kershaw,necko-reviewers This patch adds telemetry which records when H3 connections succeed / fail and what kind of ECH they used. Our H3 ECH tests are extended to test these different modes and that the telemetry is recorded correctly. Differential Revision:

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */

#ifndef mozilla_layers_APZChild_h
#define mozilla_layers_APZChild_h

#include "mozilla/layers/PAPZChild.h"
#include "mozilla/layers/APZTaskRunnable.h"

namespace mozilla {
namespace layers {

class GeckoContentController;

 * APZChild implements PAPZChild and is used to remote a GeckoContentController
 * that lives in a different process than where APZ lives.
class APZChild final : public PAPZChild {
  using APZStateChange = GeckoContentController_APZStateChange;

  explicit APZChild(RefPtr<GeckoContentController> aController);
  virtual ~APZChild();

  mozilla::ipc::IPCResult RecvLayerTransforms(
      nsTArray<MatrixMessage>&& aTransforms);

  mozilla::ipc::IPCResult RecvRequestContentRepaint(
      const RepaintRequest& aRequest);

  mozilla::ipc::IPCResult RecvUpdateOverscrollVelocity(
      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
      const bool& aIsRootContent);

  mozilla::ipc::IPCResult RecvUpdateOverscrollOffset(
      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
      const bool& aIsRootContent);

  mozilla::ipc::IPCResult RecvNotifyMozMouseScrollEvent(const ViewID& aScrollId,
                                                        const nsString& aEvent);

  mozilla::ipc::IPCResult RecvNotifyAPZStateChange(
      const ScrollableLayerGuid& aGuid, const APZStateChange& aChange,
      const int& aArg);

  mozilla::ipc::IPCResult RecvNotifyFlushComplete();

  mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragInitiated(
      const uint64_t& aDragBlockId, const ViewID& aScrollId,
      const ScrollDirection& aDirection);
  mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragRejected(
      const ViewID& aScrollId);

  mozilla::ipc::IPCResult RecvNotifyAsyncAutoscrollRejected(
      const ViewID& aScrollId);

  mozilla::ipc::IPCResult RecvDestroy();

  void EnsureAPZTaskRunnable() {
    if (!mAPZTaskRunnable) {
      mAPZTaskRunnable = new APZTaskRunnable(mController);

  RefPtr<GeckoContentController> mController;
  // A runnable invoked in a nsRefreshDriver's tick to update multiple
  // RepaintRequests and notify a "apz-repaints-flushed" at the same time.
  RefPtr<APZTaskRunnable> mAPZTaskRunnable;

}  // namespace layers
}  // namespace mozilla

#endif  // mozilla_layers_APZChild_h