Update mojo sdk to rev 126532ce21c5c3c55a1e1693731411cb60169efd

mojo/services/content_handler/public/interfaces/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("../../../mojo_sdk_root.gni")
 import("$mojo_sdk_root/mojo/public/tools/bindings/mojom.gni")
 
 mojom("interfaces") {
   sources = [
     "content_handler.mojom",
   ]
 
   import_dirs = [ get_path_info("../../../", "abspath") ]
 
+  if (defined(network_service_root)) {
+    import_dirs += [ network_service_root ]
+  } else {
+    network_service_root = "../../.."
+  }
+
   deps = [
-    "../../../network/public/interfaces",
+    "$network_service_root/network/public/interfaces",
   ]
 
   mojo_sdk_deps = [ "mojo/public/interfaces/application" ]
 }