chore: remove native_mate (Part 5) (#20264)

* deprecate native_mate/native_mate/object_template_builder.h

* add gin_helper/object_template_builder.h

* add patch to avoid ambiguous error

* remove usage of object_template_builder_deprecated.h in a few files

* add note we should remove gin_helper/object_template_builder.h in future

shell/common/gin_helper/object_template_builder.cc

@@ -0,0 +1,32 @@
+// Copyright (c) 2019 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/common/gin_helper/object_template_builder.h"
+
+namespace gin_helper {
+
+ObjectTemplateBuilder::ObjectTemplateBuilder(
+    v8::Isolate* isolate,
+    v8::Local<v8::ObjectTemplate> templ)
+    : isolate_(isolate), template_(templ) {}
+
+ObjectTemplateBuilder::~ObjectTemplateBuilder() = default;
+
+ObjectTemplateBuilder& ObjectTemplateBuilder::SetImpl(
+    const base::StringPiece& name,
+    v8::Local<v8::Data> val) {
+  template_->Set(gin::StringToSymbol(isolate_, name), val);
+  return *this;
+}
+
+ObjectTemplateBuilder& ObjectTemplateBuilder::SetPropertyImpl(
+    const base::StringPiece& name,
+    v8::Local<v8::FunctionTemplate> getter,
+    v8::Local<v8::FunctionTemplate> setter) {
+  template_->SetAccessorProperty(gin::StringToSymbol(isolate_, name), getter,
+                                 setter);
+  return *this;
+}
+
+}  // namespace gin_helper