[Device Service] Decouple NFC implementation from //content

content/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//gpu/vulkan/features.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
@@ skipping 1534 matching lines @@
     ]
   }
 
   if (!is_win) {
     sources += [
       "file_descriptor_info_impl.cc",
       "file_descriptor_info_impl.h",
     ]
   }
 
+  if (is_android) {
+    sources += [
+      "nfc/nfc_host.cc",
+      "nfc/nfc_host.h",
+    ]
+  }
+
   if (enable_basic_printing || enable_print_preview) {
     deps += [ "//printing" ]
   }
 
   if (!is_mac) {
     deps += [ "//sandbox" ]
   }
   if (!is_android) {
     deps += [
       "//content/browser/tracing:resources",
@@ skipping 572 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }