Added displayId to Gamepad

third_party/WebKit/Source/modules/gamepad/Gamepad.h

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 56 matching lines @@
 
     const GamepadButtonVector& buttons() const { return m_buttons; }
     void setButtons(unsigned count, const WebGamepadButton* data);
 
     GamepadPose* pose() const { return m_pose; }
     void setPose(const WebGamepadPose&);
 
     const String& hand() const { return m_hand; }
     void setHand(const WebGamepadHand&);
 
+    unsigned displayId() const { return m_displayId; }
+    void setDisplayId(unsigned val) { m_displayId = val; }
+
     DECLARE_TRACE();
 
 private:
     Gamepad();
 
     String m_id;
     unsigned m_index;
     bool m_connected;
     unsigned long long m_timestamp;
     String m_mapping;
     DoubleVector m_axes;
     GamepadButtonVector m_buttons;
     Member<GamepadPose> m_pose;
     String m_hand;
+    unsigned m_displayId;
 };
 
 } // namespace blink
 
 #endif // Gamepad_h