SavedFilesServiceInterface in //extensions

extensions/browser/api/file_system/BUILD.gn

Index: extensions/browser/api/file_system/BUILD.gn
diff --git a/extensions/browser/api/file_system/BUILD.gn b/extensions/browser/api/file_system/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..0e5fa0b4f254191a3d3a173d0bf80f9b515c6aed
--- /dev/null
+++ b/extensions/browser/api/file_system/BUILD.gn
@@ -0,0 +1,20 @@
+# Copyright 2017 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("//extensions/features/features.gni")
+
+assert(enable_extensions,
+       "Cannot depend on extensions because enable_extensions=false.")
+
+source_set("file_system") {
+  sources = [
+    "saved_file_entry.cc",
+    "saved_file_entry.h",
+    "saved_files_service_interface.h",
+  ]
+
+  deps = [
+    "//base:base",
+  ]
+}