From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/ipc/ProcessHangMonitor.h | 82 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 dom/ipc/ProcessHangMonitor.h

(limited to 'dom/ipc/ProcessHangMonitor.h')

diff --git a/dom/ipc/ProcessHangMonitor.h b/dom/ipc/ProcessHangMonitor.h
new file mode 100644
index 000000000..5ab81c87e
--- /dev/null
+++ b/dom/ipc/ProcessHangMonitor.h
@@ -0,0 +1,82 @@
+/* -*- 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_ProcessHangMonitor_h
+#define mozilla_ProcessHangMonitor_h
+
+#include "mozilla/Atomics.h"
+#include "nsIObserver.h"
+
+class nsITabChild;
+
+class MessageLoop;
+
+namespace base {
+class Thread;
+} // namespace base
+
+namespace mozilla {
+
+namespace dom {
+class ContentParent;
+class TabParent;
+} // namespace dom
+
+class PProcessHangMonitorParent;
+
+class ProcessHangMonitor final
+  : public nsIObserver
+{
+ private:
+  ProcessHangMonitor();
+  virtual ~ProcessHangMonitor();
+
+ public:
+  static ProcessHangMonitor* Get() { return sInstance; }
+  static ProcessHangMonitor* GetOrCreate();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  static void AddProcess(dom::ContentParent* aContentParent);
+  static void RemoveProcess(PProcessHangMonitorParent* aParent);
+
+  static void ClearHang();
+
+  static void ForcePaint(PProcessHangMonitorParent* aParent,
+                         dom::TabParent* aTab,
+                         uint64_t aLayerObserverEpoch);
+  static void ClearForcePaint();
+
+  enum SlowScriptAction {
+    Continue,
+    Terminate,
+    StartDebugger
+  };
+  SlowScriptAction NotifySlowScript(nsITabChild* aTabChild,
+                                    const char* aFileName,
+                                    unsigned aLineNo);
+
+  void NotifyPluginHang(uint32_t aPluginId);
+
+  bool IsDebuggerStartupComplete();
+
+  void InitiateCPOWTimeout();
+  bool ShouldTimeOutCPOWs();
+
+  MessageLoop* MonitorLoop();
+
+ private:
+  static ProcessHangMonitor* sInstance;
+
+  Atomic<bool> mCPOWTimeout;
+
+  base::Thread* mThread;
+};
+
+} // namespace mozilla
+
+#endif // mozilla_ProcessHangMonitor_h
-- 
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