1 files changed, 51 insertions, 0 deletions
diff --git a/dom/plugins/ipc/FunctionBrokerChild.h b/dom/plugins/ipc/FunctionBrokerChild.h
new file mode 100644
index 0000000000..767aaab170
--- /dev/null
+++ b/dom/plugins/ipc/FunctionBrokerChild.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=4 et :
+ * 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_plugins_functionbrokerchild_h
+#define mozilla_plugins_functionbrokerchild_h
+
+#include "mozilla/plugins/PFunctionBrokerChild.h"
+
+namespace mozilla {
+namespace plugins {
+
+class FunctionBrokerThread;
+
+/**
+ * Dispatches brokered methods to the Parent process to allow functionality
+ * that is otherwise blocked by the sandbox.
+ */
+class FunctionBrokerChild : public PFunctionBrokerChild {
+ public:
+  static bool Initialize(Endpoint<PFunctionBrokerChild>&& aBrokerEndpoint);
+  static FunctionBrokerChild* GetInstance();
+  static void Destroy();
+
+  bool IsDispatchThread();
+  void PostToDispatchThread(already_AddRefed<nsIRunnable>&& runnable);
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ private:
+  explicit FunctionBrokerChild(FunctionBrokerThread* aThread,
+                               Endpoint<PFunctionBrokerChild>&& aEndpoint);
+  void ShutdownOnDispatchThread();
+  void Bind(Endpoint<PFunctionBrokerChild>&& aEndpoint);
+
+  UniquePtr<FunctionBrokerThread> mThread;
+
+  // True if tasks on the FunctionBrokerThread have completed
+  bool mShutdownDone;
+  // This monitor guards mShutdownDone.
+  Monitor mMonitor;
+
+  static FunctionBrokerChild* sInstance;
+};
+
+}  // namespace plugins
+}  // namespace mozilla
+
+#endif  // mozilla_plugins_functionbrokerchild_h