[Device Service] Decouple NFC implementation from //content

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 6918f5fefc475574cad956886bfa1c20f36c2a56..01276881bc6b3c21129936d47dc924294c1d11a7 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -28,6 +28,7 @@
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_frame_host_manager.h"
 #include "content/browser/media/audio_stream_monitor.h"
+#include "content/browser/nfc/nfc_host.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
@@ -508,6 +509,7 @@ class CONTENT_EXPORT WebContentsImpl
   device::GeolocationServiceContext* GetGeolocationServiceContext() override;
   device::mojom::WakeLockContext* GetWakeLockContext() override;
   device::mojom::WakeLockService* GetRendererWakeLock() override;
+  void GetNFC(device::nfc::mojom::NFCRequest request) override;
   void EnterFullscreenMode(const GURL& origin) override;
   void ExitFullscreenMode(bool will_cause_resize) override;
   bool ShouldRouteMessageEvent(
@@ -1514,6 +1516,8 @@ class CONTENT_EXPORT WebContentsImpl
 
   device::mojom::WakeLockServicePtr renderer_wake_lock_;
 
+  std::unique_ptr<NFCHost> nfc_host_;
+
   std::unique_ptr<ScreenOrientationProvider> screen_orientation_provider_;
 
   std::unique_ptr<ManifestManagerHost> manifest_manager_host_;