headless: Fix inconsistent header naming

headless/lib/browser/devtools_api/domain_types_forward_declaration_h.template

Index: headless/lib/browser/devtools_api/domain_types_forward_declaration_h.template
diff --git a/headless/lib/browser/devtools_api/domain_types_forward_declaration_h.template b/headless/lib/browser/devtools_api/domain_types_forward_declaration_h.template
deleted file mode 100644
index 4bb223b04abf13c63046ff083b5f9678c4289a4d..0000000000000000000000000000000000000000
--- a/headless/lib/browser/devtools_api/domain_types_forward_declaration_h.template
+++ /dev/null
@@ -1,44 +0,0 @@
-// This file is generated
-
-// Copyright (c) 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.
-
-#ifndef HEADLESS_PUBLIC_DEVTOOLS_INTERNAL_TYPES_FORWARD_DECLARATION_{{domain.domain | camelcase_to_hacker_style | upper}}_H_
-#define HEADLESS_PUBLIC_DEVTOOLS_INTERNAL_TYPES_FORWARD_DECLARATION_{{domain.domain | camelcase_to_hacker_style | upper}}_H_
-
-#include "base/optional.h"
-#include "base/values.h"
-#include "headless/public/headless_export.h"
-#include "headless/public/util/error_reporter.h"
-
-#include "base/memory/ptr_util.h"
-
-namespace headless {
-
-namespace {{domain.domain | camelcase_to_hacker_style}} {
-{% for type in domain.types %}
-  {% if type.type == "object" %}
-    {% if "properties" in type %}
-class {{type.id}};
-    {% else %}
-using {{type.id}} = base::Value;
-    {% endif %}
-  {% endif %}
-{% endfor %}
-
-{% for type in domain.types %}
-  {% if "enum" in type %}
-enum class {{type.id}} {
-    {% for literal in type.enum %}
-  {{ literal | sanitize_literal | dash_to_camelcase | camelcase_to_hacker_style | upper }}{{',' if not loop.last}}
-    {% endfor %}
-};
-
-  {% endif %}
-{% endfor %}
-}  // namespace {{domain.domain | camelcase_to_hacker_style}}
-
-}  // namespace headless
-
-#endif  // HEADLESS_PUBLIC_DEVTOOLS_INTERNAL_TYPES_FORWARD_DECLARATION_{{domain.domain | camelcase_to_hacker_style | upper}}_H_