Create //components/ntp_tiles.

components/ntp_tiles/BUILD.gn

Index: components/ntp_tiles/BUILD.gn
diff --git a/components/password_manager/content/public/interfaces/BUILD.gn b/components/ntp_tiles/BUILD.gn
similarity index 54%
copy from components/password_manager/content/public/interfaces/BUILD.gn
copy to components/ntp_tiles/BUILD.gn
index e032e8afb07a40e3e12b70a123f24b262d863f71..e524f62db9fd045d4b9d9b785a777b8875a38f2d 100644
--- a/components/password_manager/content/public/interfaces/BUILD.gn
+++ b/components/ntp_tiles/BUILD.gn
@@ -2,14 +2,16 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//mojo/public/tools/bindings/mojom.gni")
-
-mojom("interfaces") {
+# GYP version: components/ntp_tiles.gypi:ntp_tiles
+source_set("ntp_tiles") {
   sources = [
-    "credential_manager.mojom",
+    "pref_names.cc",
+    "pref_names.h",
+    "switches.cc",
+    "switches.h",
   ]
 
   public_deps = [
-    "//url/mojo:url_mojom_origin",
+    "//base",
   ]
 }