Privatize StrongBinding lifetime management

device/usb/mojo/device_manager_impl.h

 // Copyright 2015 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 DEVICE_USB_MOJO_DEVICE_MANAGER_IMPL_H_
 #define DEVICE_USB_MOJO_DEVICE_MANAGER_IMPL_H_
 
 #include <memory>
 #include <queue>
 #include <set>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/scoped_observer.h"
 #include "device/usb/public/interfaces/device_manager.mojom.h"
 #include "device/usb/usb_service.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace device {
 
 class UsbDevice;
 class UsbDeviceFilter;
 class UsbDeviceHandle;
 
 namespace usb {
 
 class PermissionProvider;
 
 // Implementation of the public DeviceManager interface. This interface can be
 // requested from the devices app located at "mojo:devices", if available.
 class DeviceManagerImpl : public DeviceManager, public UsbService::Observer {
  public:
   static void Create(base::WeakPtr<PermissionProvider> permission_provider,
                      mojo::InterfaceRequest<DeviceManager> request);
 
   DeviceManagerImpl(base::WeakPtr<PermissionProvider> permission_provider,
-                    UsbService* usb_service,
-                    mojo::InterfaceRequest<DeviceManager> request);
+                    UsbService* usb_service);
   ~DeviceManagerImpl() override;
 
   void set_connection_error_handler(const base::Closure& error_handler) {
     connection_error_handler_ = error_handler;
   }
 
  private:
   // DeviceManager implementation:
   void GetDevices(EnumerationOptionsPtr options,
                   const GetDevicesCallback& callback) override;
@@ skipping 14 matching lines @@
   void MaybeRunDeviceChangesCallback();
 
   base::WeakPtr<PermissionProvider> permission_provider_;
 
   UsbService* usb_service_;
   ScopedObserver<UsbService, UsbService::Observer> observer_;
   DeviceManagerClientPtr client_;
 
   base::Closure connection_error_handler_;
 
-  mojo::StrongBinding<DeviceManager> binding_;
   base::WeakPtrFactory<DeviceManagerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceManagerImpl);
 };
 
 }  // namespace usb
 }  // namespace device
 
 #endif  // DEVICE_USB_MOJO_DEVICE_MANAGER_IMPL_H_