1 files changed, 59 insertions, 0 deletions
diff --git a/gfx/layers/ipc/SharedSurfacesMemoryReport.h b/gfx/layers/ipc/SharedSurfacesMemoryReport.h
new file mode 100644
index 0000000000..81baf1349f
--- /dev/null
+++ b/gfx/layers/ipc/SharedSurfacesMemoryReport.h
@@ -0,0 +1,59 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_GFX_SHAREDSURFACESMEMORYREPORT_H
+#define MOZILLA_GFX_SHAREDSURFACESMEMORYREPORT_H
+
+#include <cstdint>  // for uint32_t
+#include <unordered_map>
+#include "base/process.h"
+#include "ipc/IPCMessageUtils.h"
+#include "ipc/IPCMessageUtilsSpecializations.h"
+#include "mozilla/gfx/Point.h"  // for IntSize
+
+namespace mozilla {
+namespace layers {
+
+class SharedSurfacesMemoryReport final {
+ public:
+  class SurfaceEntry final {
+   public:
+    base::ProcessId mCreatorPid;
+    gfx::IntSize mSize;
+    int32_t mStride;
+    uint32_t mConsumers;
+    bool mCreatorRef;
+  };
+
+  std::unordered_map<uint64_t, SurfaceEntry> mSurfaces;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+namespace IPC {
+
+template <>
+struct ParamTraits<mozilla::layers::SharedSurfacesMemoryReport> {
+  typedef mozilla::layers::SharedSurfacesMemoryReport paramType;
+
+  static void Write(MessageWriter* aWriter, const paramType& aParam) {
+    WriteParam(aWriter, aParam.mSurfaces);
+  }
+
+  static bool Read(MessageReader* aReader, paramType* aResult) {
+    return ReadParam(aReader, &aResult->mSurfaces);
+  }
+};
+
+template <>
+struct ParamTraits<mozilla::layers::SharedSurfacesMemoryReport::SurfaceEntry>
+    : public PlainOldDataSerializer<
+          mozilla::layers::SharedSurfacesMemoryReport::SurfaceEntry> {};
+
+}  // namespace IPC
+
+#endif