According to the 747 QRH which is similar for the 777, concerning an RTO:
When the airplane is stopped, perform procedures as required.
Review Brake Cooling Schedule for brake cooling time and precautions (refer
to Performance Inflight chapter).
Consider the following:
• the possibility of wheel fuse plugs melting
• the need to clear the runway
• the requirement for remote parking
• wind direction in case of fire
• alerting fire equipment
• not setting parking brake unless passenger evacuation is necessary
• advising the ground crew of the hot brake hazard
• advising the passengers of the need to remain seated or evacuate
• completion of the Non-Normal checklist (if appropriate) for conditions
which caused the RTO