[Android][gn] Add android resources templates

net/BUILD.gn

 # Copyright (c) 2013 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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
-import("//tools/grit/grit_rule.gni")
 import("//url/config.gni")
 
+if (!is_android) {
+  import("//tools/grit/grit_rule.gni")
+}
+
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 } else if (is_mac) {
   import("//build/config/mac/mac_sdk.gni")
 }
 
 # The list of net files is kept in net.gypi. Read it.
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
@@ skipping 1295 matching lines @@
   sources = [ "quic/quic_server_bin.cc" ]
   deps = [
     ":quic_tools",
     ":net",
     "//base",
     "//third_party/openssl",
   ]
 }
 
 }  # !is_android