Update BaseBindRewriters to convert base::Bind to base::BindOnce

tools/clang/base_bind_rewriters/tests/test-expected.cc

-// Copyright 2016 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.
-
-template <typename>
-class scoped_refptr {
- public:
-  void* get() { return 0; }
-};
-
-namespace base {
-
-template <typename Functor, typename... Args>
-void Bind(Functor&&, Args&&...) {}
-
-}  // namespace base
-
-struct Foo {
-  void Bar();
-  static void Baz();
-};
-
-void Test() {
-  using base::Bind;
-  scoped_refptr<int> foo;
-  base::Bind(&Foo::Bar, foo);
-  Bind(&Foo::Bar, foo);
-  base::Bind(&Foo::Bar, (&foo));
-  base::Bind(&Foo::Bar, foo);
-  base::Bind(&Foo::Bar, foo);
-  base::Bind(&Foo::Bar, foo, foo.get());
-  base::Bind(&Foo::Baz, foo.get());
-  base::Bind(&Foo::Bar, foo);
-  base::Bind(&Foo::Bar, (&foo));
-}