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

blimp/engine/BUILD.gn

 # Copyright 2015 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/chrome_build.gni")
 import("//build/config/features.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/grit/repack.gni")
@@ skipping 346 matching lines @@
   ]
   public_deps = [
     ":blob_channel_mojo",
   ]
 }
 
 mojom("blob_channel_mojo") {
   sources = [
     "mojo/blob_channel.mojom",
   ]
+
+  use_new_wrapper_types = false
 }
 
 source_set("test_support") {
   testonly = true
 
   sources = [
     "app/test_content_main_delegate.cc",
     "app/test_content_main_delegate.h",
   ]
 
@@ skipping 303 matching lines @@
     "//content/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 
   data = [
     "//blimp/test/data/",
     "$root_out_dir/blimp_engine.pak",
   ]
 }