Mojo C++ bindings: make the generator use STL/WTF string/vector/map by default.

content/common/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("//content/common/common.gni")
 import("//media/media_options.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
@@ skipping 244 matching lines @@
     "//components/leveldb/public/interfaces",
     "//device/sensors/public/interfaces",
     "//services/shell/public/interfaces",
     "//services/ui/public/interfaces",
     "//skia/public/interfaces",
     "//third_party/WebKit/public:mojo_bindings",
     "//ui/gfx/geometry/mojo",
     "//url/mojo:url_mojom_gurl",
     "//url/mojo:url_mojom_origin",
   ]
+
+  use_new_wrapper_types = false
 }