diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/process.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/process.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_PROCESS_H_
+#define BASE_PROCESS_H_
+
+#include "base/basictypes.h"
+
+#include <sys/types.h>
+#ifdef OS_WIN
+#include <windows.h>
+#endif
+
+namespace base {
+
+// ProcessHandle is a platform specific type which represents the underlying OS
+// handle to a process.
+// ProcessId is a number which identifies the process in the OS.
+#if defined(OS_WIN)
+typedef HANDLE ProcessHandle;
+typedef DWORD ProcessId;
+#elif defined(OS_POSIX)
+// On POSIX, our ProcessHandle will just be the PID.
+typedef pid_t ProcessHandle;
+typedef pid_t ProcessId;
+#endif
+
+class Process {
+ public:
+  Process() : process_(0), last_working_set_size_(0) {}
+  explicit Process(ProcessHandle handle) :
+    process_(handle), last_working_set_size_(0) {}
+
+  // A handle to the current process.
+  static Process Current();
+
+  // Get/Set the handle for this process. The handle will be 0 if the process
+  // is no longer running.
+  ProcessHandle handle() const { return process_; }
+  void set_handle(ProcessHandle handle) { process_ = handle; }
+
+  // Get the PID for this process.
+  ProcessId pid() const;
+
+  // Is the this process the current process.
+  bool is_current() const;
+
+  // Close the process handle. This will not terminate the process.
+  void Close();
+
+  // Terminates the process with extreme prejudice. The given result code will
+  // be the exit code of the process. If the process has already exited, this
+  // will do nothing.
+  void Terminate(int result_code);
+
+  // A process is backgrounded when it's priority is lower than normal.
+  // Return true if this process is backgrounded, false otherwise.
+  bool IsProcessBackgrounded() const;
+
+  // Set a prcess as backgrounded.  If value is true, the priority
+  // of the process will be lowered.  If value is false, the priority
+  // of the process will be made "normal" - equivalent to default
+  // process priority.
+  // Returns true if the priority was changed, false otherwise.
+  bool SetProcessBackgrounded(bool value);
+
+  // Releases as much of the working set back to the OS as possible.
+  // Returns true if successful, false otherwise.
+  bool EmptyWorkingSet();
+
+ private:
+  ProcessHandle process_;
+  size_t last_working_set_size_;
+};
+
+}  // namespace base
+
+#endif  // BASE_PROCESS_H_