Refactor WebBluetoothServiceClient in the web_bluetooth.mojom (another version)

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

Index: third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTServer.h
diff --git a/third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTServer.h b/third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTServer.h
index 805e50afcef1480a9f48ee947ca2d9982c863887..d72aa6d393b95c2a27a60adb3836d05f989fe51b 100644
--- a/third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTServer.h
+++ b/third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTServer.h
@@ -7,7 +7,9 @@
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/modules/v8/StringOrUnsignedLong.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "modules/bluetooth/BluetoothDevice.h"
+#include "mojo/public/cpp/bindings/associated_binding.h"
 #include "platform/heap/Heap.h"
 #include "public/platform/modules/bluetooth/web_bluetooth.mojom-blink.h"
 #include "wtf/text/WTFString.h"
@@ -21,15 +23,25 @@ class ScriptState;
 
 // BluetoothRemoteGATTServer provides a way to interact with a connected
 // bluetooth peripheral.
-class BluetoothRemoteGATTServer final
-    : public GarbageCollected<BluetoothRemoteGATTServer>,
-      public ScriptWrappable {
+class BluetoothRemoteGATTServer
+    : public GarbageCollectedFinalized<BluetoothRemoteGATTServer>,
+      public ScriptWrappable,
+      public ContextLifecycleObserver,
+      public mojom::blink::WebBluetoothServerClient {
+  USING_PRE_FINALIZER(BluetoothRemoteGATTServer, Dispose);
   DEFINE_WRAPPERTYPEINFO();
+  USING_GARBAGE_COLLECTED_MIXIN(BluetoothRemoteGATTServer);
 
  public:
-  BluetoothRemoteGATTServer(BluetoothDevice*);
+  BluetoothRemoteGATTServer(ExecutionContext*, BluetoothDevice*);
 
-  static BluetoothRemoteGATTServer* Create(BluetoothDevice*);
+  static BluetoothRemoteGATTServer* Create(ExecutionContext*, BluetoothDevice*);
+
+  // ContextLifecycleObserver:
+  void contextDestroyed(ExecutionContext*) override;
+
+  // mojom::blink::WebBluetoothServerClient:
+  void GATTServerDisconnected() override;
 
   void SetConnected(bool connected) { m_connected = connected; }
 
@@ -47,6 +59,22 @@ class BluetoothRemoteGATTServer final
   // Removes all ScriptPromiseResolvers from the set of Active Algorithms.
   void ClearActiveAlgorithms() { m_activeAlgorithms.clear(); }
 
+  // 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 DisconnectIfConnected();
+
+  // Performs necessary cleanup when a device disconnects and fires
+  // gattserverdisconnected event.
+  void CleanupDisconnectedDeviceAndFireEvent();
+
+  void DispatchDisconnected();
+
+  // USING_PRE_FINALIZER interface.
+  // Called before the object gets garbage collected.
+  void Dispose();
+
   // Interface required by Garbage Collectoin:
   DECLARE_VIRTUAL_TRACE();
 
@@ -83,6 +111,9 @@ class BluetoothRemoteGATTServer final
   // using this server’s connection.
   HeapHashSet<Member<ScriptPromiseResolver>> m_activeAlgorithms;
 
+  mojo::AssociatedBinding<mojom::blink::WebBluetoothServerClient>
+      m_clientBinding;
+
   Member<BluetoothDevice> m_device;
   bool m_connected;
 };