diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/chrome/common/debug_flags.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/chrome/common/debug_flags.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+// 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.
+
+#include "chrome/common/debug_flags.h"
+
+#include "base/base_switches.h"
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+
+bool DebugFlags::ProcessDebugFlags(CommandLine* command_line,
+                                   ChildProcessInfo::ProcessType type,
+                                   bool is_in_sandbox) {
+  bool should_help_child = false;
+  const CommandLine& current_cmd_line = *CommandLine::ForCurrentProcess();
+  if (current_cmd_line.HasSwitch(switches::kDebugChildren)) {
+    // Look to pass-on the kDebugOnStart flag.
+    std::wstring value;
+    value = current_cmd_line.GetSwitchValue(switches::kDebugChildren);
+    if (value.empty() ||
+        (type == ChildProcessInfo::RENDER_PROCESS &&
+         value == switches::kRendererProcess) ||
+        (type == ChildProcessInfo::PLUGIN_PROCESS &&
+         value == switches::kPluginProcess)) {
+      command_line->AppendSwitch(switches::kDebugOnStart);
+      should_help_child = true;
+    }
+    command_line->AppendSwitchWithValue(switches::kDebugChildren, value);
+  } else if (current_cmd_line.HasSwitch(switches::kWaitForDebuggerChildren)) {
+    // Look to pass-on the kWaitForDebugger flag.
+    std::wstring value;
+    value = current_cmd_line.GetSwitchValue(switches::kWaitForDebuggerChildren);
+    if (value.empty() ||
+        (type == ChildProcessInfo::RENDER_PROCESS &&
+         value == switches::kRendererProcess) ||
+        (type == ChildProcessInfo::PLUGIN_PROCESS &&
+         value == switches::kPluginProcess)) {
+      command_line->AppendSwitch(switches::kWaitForDebugger);
+    }
+    command_line->AppendSwitchWithValue(switches::kWaitForDebuggerChildren,
+                                        value);
+  }
+  return should_help_child;
+}