[Chromoting] Implement host safe-mode

remoting/host/safe_mode.cc

Index: remoting/host/safe_mode.cc
diff --git a/remoting/host/safe_mode.cc b/remoting/host/safe_mode.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4804fbdc4ddbae78ae0e666c7b37b30bb6291d88
--- /dev/null
+++ b/remoting/host/safe_mode.cc
@@ -0,0 +1,17 @@
+// Copyright 2017 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 "remoting/host/safe_mode.h"
+
+#include "base/command_line.h"
+#include "remoting/host/switches.h"
+
+namespace remoting {
+
+bool ExecuteHostInSafeMode() {
+  const auto* command_line = base::CommandLine::ForCurrentProcess();
+  return command_line->HasSwitch(kSafeMode);
+}
+
+}  // namespace remoting