bluetooth: Invalidate services upon disconnection

third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h

Index: third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h
diff --git a/third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h b/third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h
index 87c9ab816561293dff707ebf5c347e32e69e7575..6f6fdaa395f7c1eaec7506a6071569f0962ece4c 100644
--- a/third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h
+++ b/third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.h
@@ -48,6 +48,7 @@ class BluetoothDevice final : public EventTargetWithInlineData,
 
   BluetoothRemoteGATTService* getOrCreateBluetoothRemoteGATTService(
       std::unique_ptr<WebBluetoothRemoteGATTService>);
+  bool isValidService(const String& serviceInstanceId);
 
   // We should disconnect from the device in all of the following cases:
   // 1. When the object gets GarbageCollected e.g. it went out of scope.
@@ -65,9 +66,15 @@ class BluetoothDevice final : public EventTargetWithInlineData,
   // ContextLifecycleObserver interface.
   void contextDestroyed() override;
 
-  // If gatt is connected then disconnects and sets gatt.connected to false.
-  // Returns true if gatt was disconnected.
-  bool disconnectGATTIfConnected();
+  // If gatt is connected then sets gatt.connected to false and disconnects.
+  // This function only performs the necessary steps to ensure a device
+  // disconnects therefore it should only be used when the object is being
+  // garbage collected or the context is being destroyed.
+  void disconnectGATTIfConnected();
+
+  // Performs necessary cleanup when a device disconnects and fires
+  // gattserverdisconnected event.
+  void cleanupDisconnectedDeviceAndFireEvent();
 
   // EventTarget methods:
   const AtomicString& interfaceName() const override;