[Device Service] Decouple NFC implementation from //content

services/device/device_service.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 SERVICES_DEVICE_DEVICE_SERVICE_H_
 #define SERVICES_DEVICE_DEVICE_SERVICE_H_
 
 #include "base/memory/ref_counted.h"
 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom.h"
 #include "device/screen_orientation/public/interfaces/screen_orientation.mojom.h"
 #include "device/sensors/public/interfaces/motion.mojom.h"
 #include "device/sensors/public/interfaces/orientation.mojom.h"
 #include "device/wake_lock/public/interfaces/wake_lock_context_provider.mojom.h"
 #include "device/wake_lock/wake_lock_service_context.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "services/device/public/interfaces/battery_monitor.mojom.h"
 #include "services/device/public/interfaces/fingerprint.mojom.h"
 #include "services/device/public/interfaces/power_monitor.mojom.h"
 #include "services/device/public/interfaces/time_zone_monitor.mojom.h"
 #include "services/device/public/interfaces/vibration_manager.mojom.h"
 #include "services/service_manager/public/cpp/binder_registry.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "services/service_manager/public/cpp/service.h"
 
+#if defined(OS_ANDROID)
+#include "base/android/scoped_java_ref.h"
+#endif
+
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace device {
 
 class PowerMonitorMessageBroadcaster;
 class TimeZoneMonitor;
 
 #if defined(OS_ANDROID)
+// NOTE: See the comments on the definitions of |WakeLockContextCallback|
+// and NFCDelegate.java to understand the semantics and usage of these
+// parameters.
 std::unique_ptr<service_manager::Service> CreateDeviceService(
     scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
-    const WakeLockContextCallback& wake_lock_context_callback);
+    const WakeLockContextCallback& wake_lock_context_callback,
+    const base::android::JavaRef<jobject>& java_nfc_delegate);
 #else
 std::unique_ptr<service_manager::Service> CreateDeviceService(
     scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> io_task_runner);
 #endif
 
 class DeviceService : public service_manager::Service {
  public:
 #if defined(OS_ANDROID)
   DeviceService(scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
                 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
-                const WakeLockContextCallback& wake_lock_context_callback);
+                const WakeLockContextCallback& wake_lock_context_callback,
+                const base::android::JavaRef<jobject>& java_nfc_delegate);
 #else
   DeviceService(scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
                 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner);
 #endif
   ~DeviceService() override;
 
  private:
   // service_manager::Service:
   void OnStart() override;
   void OnBindInterface(const service_manager::BindSourceInfo& source_info,
@@ skipping 41 matching lines @@
       const service_manager::BindSourceInfo& source_info,
       mojom::TimeZoneMonitorRequest request);
 
   void BindWakeLockContextProviderRequest(
       const service_manager::BindSourceInfo& source_info,
       mojom::WakeLockContextProviderRequest request);
 
   std::unique_ptr<PowerMonitorMessageBroadcaster>
       power_monitor_message_broadcaster_;
   std::unique_ptr<TimeZoneMonitor> time_zone_monitor_;
+  scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
+
+  WakeLockContextCallback wake_lock_context_callback_;
+
 #if defined(OS_ANDROID)
   // Binds |java_interface_provider_| to an interface registry that exposes
   // factories for the interfaces that are provided via Java on Android.
   service_manager::InterfaceProvider* GetJavaInterfaceProvider();
 
   // InterfaceProvider that is bound to the Java-side interface registry.
   service_manager::InterfaceProvider java_interface_provider_;
 
   bool java_interface_provider_initialized_;
+
+  base::android::ScopedJavaGlobalRef<jobject> java_nfc_delegate_;
 #endif
 
-  scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
-  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
-
-  WakeLockContextCallback wake_lock_context_callback_;
-
   service_manager::BinderRegistry registry_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceService);
 };
 
 }  // namespace device
 
 #endif  // SERVICES_DEVICE_DEVICE_SERVICE_H_