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diff --git a/xpcom/components/Module.h b/xpcom/components/Module.h
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+/* -*- 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_Module_h
+#define mozilla_Module_h
+
+#include "nscore.h"
+
+namespace mozilla {
+
+namespace Module {
+/**
+ * This selector allows components to be marked so that they're only loaded
+ * into certain kinds of processes. Selectors can be combined.
+ */
+// Note: This must be kept in sync with the selector matching in
+// nsComponentManager.cpp.
+enum ProcessSelector {
+ ANY_PROCESS = 0,
+ MAIN_PROCESS_ONLY = 1 << 0,
+ CONTENT_PROCESS_ONLY = 1 << 1,
+
+ /**
+ * By default, modules are not loaded in the GPU, VR, Socket, RDD, Utility,
+ * GMPlugin and IPDLUnitTest processes, even if ANY_PROCESS is specified.
+ * This flag enables a module in the relevant process.
+ *
+ * NOTE: IPDLUnitTest does not have its own flag, and will only load a
+ * module if it is enabled in all processes.
+ */
+ ALLOW_IN_GPU_PROCESS = 1 << 2,
+ ALLOW_IN_VR_PROCESS = 1 << 3,
+ ALLOW_IN_SOCKET_PROCESS = 1 << 4,
+ ALLOW_IN_RDD_PROCESS = 1 << 5,
+ ALLOW_IN_UTILITY_PROCESS = 1 << 6,
+ ALLOW_IN_GMPLUGIN_PROCESS = 1 << 7,
+ ALLOW_IN_GPU_AND_MAIN_PROCESS = ALLOW_IN_GPU_PROCESS | MAIN_PROCESS_ONLY,
+ ALLOW_IN_GPU_AND_VR_PROCESS = ALLOW_IN_GPU_PROCESS | ALLOW_IN_VR_PROCESS,
+ ALLOW_IN_GPU_AND_SOCKET_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_GPU_VR_AND_SOCKET_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_VR_PROCESS | ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_RDD_AND_SOCKET_PROCESS =
+ ALLOW_IN_RDD_PROCESS | ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_GPU_RDD_AND_SOCKET_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_RDD_PROCESS | ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_GPU_RDD_SOCKET_AND_UTILITY_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_RDD_PROCESS | ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_GPU_RDD_VR_AND_SOCKET_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_RDD_PROCESS | ALLOW_IN_VR_PROCESS |
+ ALLOW_IN_SOCKET_PROCESS,
+ ALLOW_IN_GPU_RDD_VR_SOCKET_AND_UTILITY_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_RDD_PROCESS | ALLOW_IN_VR_PROCESS |
+ ALLOW_IN_SOCKET_PROCESS | ALLOW_IN_UTILITY_PROCESS,
+ ALLOW_IN_GPU_RDD_VR_SOCKET_UTILITY_AND_GMPLUGIN_PROCESS =
+ ALLOW_IN_GPU_PROCESS | ALLOW_IN_RDD_PROCESS | ALLOW_IN_VR_PROCESS |
+ ALLOW_IN_SOCKET_PROCESS | ALLOW_IN_UTILITY_PROCESS |
+ ALLOW_IN_GMPLUGIN_PROCESS
+};
+
+static constexpr size_t kMaxProcessSelector = size_t(
+ ProcessSelector::ALLOW_IN_GPU_RDD_VR_SOCKET_UTILITY_AND_GMPLUGIN_PROCESS);
+
+/**
+ * This allows category entries to be marked so that they are or are
+ * not loaded when in backgroundtask mode.
+ */
+// Note: This must be kept in sync with the selector matching in
+// StaticComponents.cpp.in.
+enum BackgroundTasksSelector {
+ NO_TASKS = 0x0,
+ ALL_TASKS = 0xFFFF,
+};
+}; // namespace Module
+
+} // namespace mozilla
+
+#endif // mozilla_Module_h