diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/chrome/common/child_process_info.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/chrome/common/child_process_info.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,59 @@
+// Copyright (c) 2009 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.
+
+#include "chrome/common/child_process_info.h"
+
+#include <limits>
+
+#include "base/logging.h"
+#include "base/process_util.h"
+#include "base/rand_util.h"
+#include "base/string_util.h"
+
+std::wstring ChildProcessInfo::GetTypeNameInEnglish(
+    ChildProcessInfo::ProcessType type) {
+  switch (type) {
+    case BROWSER_PROCESS:
+      return L"Browser";
+    case RENDER_PROCESS:
+      return L"Tab";
+    case PLUGIN_PROCESS:
+      return L"Plug-in";
+    case WORKER_PROCESS:
+      return L"Web Worker";
+    case UNKNOWN_PROCESS:
+      default:
+      DCHECK(false) << "Unknown child process type!";
+      return L"Unknown";
+    }
+}
+
+std::wstring ChildProcessInfo::GetLocalizedTitle() const {
+  return name_;
+}
+
+ChildProcessInfo::ChildProcessInfo(ProcessType type) {
+  // This constructor is only used by objects which derive from this class,
+  // which means *this* is a real object that refers to a child process, and not
+  // just a simple object that contains information about it.  So add it to our
+  // list of running processes.
+  type_ = type;
+  pid_ = -1;
+}
+
+
+ChildProcessInfo::~ChildProcessInfo() {
+}
+
+std::wstring ChildProcessInfo::GenerateRandomChannelID(void* instance) {
+  // Note: the string must start with the current process id, this is how
+  // child processes determine the pid of the parent.
+  // Build the channel ID.  This is composed of a unique identifier for the
+  // parent browser process, an identifier for the child instance, and a random
+  // component. We use a random component so that a hacked child process can't
+  // cause denial of service by causing future named pipe creation to fail.
+  return StringPrintf(L"%d.%x.%d",
+                      base::GetCurrentProcId(), instance,
+                      base::RandInt(0, std::numeric_limits<int>::max()));
+}