[Ozone DRI] Add support to configure the VT on CrOS

ui/ozone/platform/dri/virtual_terminal_manager.h

Index: ui/ozone/platform/dri/virtual_terminal_manager.h
diff --git a/ui/ozone/platform/dri/virtual_terminal_manager.h b/ui/ozone/platform/dri/virtual_terminal_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..11af0b0c2a28d5200cfc75db03e90712e7614551
--- /dev/null
+++ b/ui/ozone/platform/dri/virtual_terminal_manager.h
@@ -0,0 +1,31 @@
+// Copyright 2014 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 UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_
+#define UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_
+
+#include <termios.h>
+
+#include "base/basictypes.h"
+
+namespace ui {
+
+class VirtualTerminalManager {
+ public:
+  VirtualTerminalManager();
+  ~VirtualTerminalManager();
+
+ private:
+
+  int fd_;
+  int vt_mode_;
+  int previous_keyboard_mode_;
+  struct termios terminal_attributes_;
+
+  DISALLOW_COPY_AND_ASSIGN(VirtualTerminalManager);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRI_VIRTUAL_TERMINAL_MANAGER_H_