1 files changed, 51 insertions, 0 deletions
diff --git a/layout/printing/DrawEventRecorder.cpp b/layout/printing/DrawEventRecorder.cpp
new file mode 100644
index 0000000000..69b9b48ae6
--- /dev/null
+++ b/layout/printing/DrawEventRecorder.cpp
@@ -0,0 +1,51 @@
+/* -*- 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 http://mozilla.org/MPL/2.0/. */
+
+#include "DrawEventRecorder.h"
+
+namespace mozilla {
+namespace layout {
+
+void DrawEventRecorderPRFileDesc::RecordEvent(
+    const gfx::RecordedEvent& aEvent) {
+  aEvent.RecordToStream(mOutputStream);
+
+  Flush();
+}
+
+DrawEventRecorderPRFileDesc::~DrawEventRecorderPRFileDesc() {
+  if (IsOpen()) {
+    Close();
+  }
+}
+
+void DrawEventRecorderPRFileDesc::Flush() { mOutputStream.Flush(); }
+
+bool DrawEventRecorderPRFileDesc::IsOpen() { return mOutputStream.IsOpen(); }
+
+void DrawEventRecorderPRFileDesc::OpenFD(PRFileDesc* aFd) {
+  MOZ_DIAGNOSTIC_ASSERT(!IsOpen());
+
+  mOutputStream.OpenFD(aFd);
+  WriteHeader(mOutputStream);
+}
+
+void DrawEventRecorderPRFileDesc::Close() {
+  MOZ_DIAGNOSTIC_ASSERT(IsOpen());
+
+  mOutputStream.Close();
+}
+
+void DrawEventRecorderPRFileDesc::AddDependentSurface(uint64_t aDependencyId) {
+  mDependentSurfaces.AppendElement(aDependencyId);
+}
+
+nsTArray<uint64_t>&& DrawEventRecorderPRFileDesc::TakeDependentSurfaces() {
+  return std::move(mDependentSurfaces);
+}
+
+}  // namespace layout
+}  // namespace mozilla