bluetooth: Clean up WebBluetoothServiceImpl when adapter is removed

content/browser/bluetooth/web_bluetooth_service_impl.h

 // Copyright 2016 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 CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 42 matching lines @@
   // Sets the connection error handler for WebBluetoothServiceImpl's Binding.
   void SetClientConnectionErrorHandler(base::Closure closure);
 
  private:
   // WebContentsObserver:
   // These functions should always check that the affected RenderFrameHost
   // is this->render_frame_host_ and not some other frame in the same tab.
   void DidFinishNavigation(NavigationHandle* navigation_handle) override;
 
   // BluetoothAdapter::Observer:
+  void AdapterPresentChanged(device::BluetoothAdapter* adapter,
+                             bool present) override;
   void GattCharacteristicValueChanged(
       device::BluetoothAdapter* adapter,
       device::BluetoothGattCharacteristic* characteristic,
       const std::vector<uint8_t>& value) override;
 
   // Notifies the WebBluetoothServiceClient that characteristic
   // |characteristic_instance_id| changed it's value. We only do this for
   // characteristics that have been returned to the client in the past.
   void NotifyCharacteristicValueChanged(
       const std::string& characteristic_instance_id,
@@ skipping 43 matching lines @@
   // Callback for BluetoothGattNotifySession::Stop.
   void OnStopNotifySessionComplete(
       const std::string& characteristic_instance_id,
       const RemoteCharacteristicStopNotificationsCallback& callback);
 
   RenderProcessHost* GetRenderProcessHost();
   BluetoothDispatcherHost* GetBluetoothDispatcherHost();
   void CrashRendererAndClosePipe(bad_message::BadMessageReason reason);
   url::Origin GetOrigin();
 
-  // All state (maps, sets, etc.) should be cleaned after navigations
-  // that are not in the same page.
+  // Clears all state (maps, sets, etc).
+  void ClearState();
 
   // Map to keep track of the characteristics' notify sessions.
   std::unordered_map<std::string,
                      std::unique_ptr<device::BluetoothGattNotifySession>>
       characteristic_id_to_notify_session_;
 
   // The RFH that owns this instance.
   RenderFrameHost* render_frame_host_;
 
   // Proxy to the WebBluetoothServiceClient to send device events to.
   blink::mojom::WebBluetoothServiceClientAssociatedPtr client_;
 
   // The lifetime of this instance is exclusively managed by the RFH that
   // owns it so we use a "Binding" as opposed to a "StrongBinding" which deletes
   // the service on pipe connection errors.
   mojo::Binding<blink::mojom::WebBluetoothService> binding_;
 
   base::WeakPtrFactory<WebBluetoothServiceImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebBluetoothServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_WEB_BLUETOOTH_SERVICE_IMPL_H_