Add function to check what HTML Element interface corresponds to a given tag name.

third_party/WebKit/Source/core/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/chromecast_build.gni")
 import("//build/toolchain/toolchain.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//third_party/WebKit/Source/bindings/bindings.gni")
@@ skipping 477 matching lines @@
     "$blink_core_output_dir/HTMLNames.h",
   ]
 }
 
 process_in_files("make_core_generated_html_element_type_helpers") {
   script = "../build/scripts/make_element_type_helpers.py"
 
   in_files = [ "html/HTMLTagNames.in" ]
   other_inputs = make_element_type_helpers_files
   outputs = [
+    "$blink_core_output_dir/HTMLElementTypeHelpers.cpp",
     "$blink_core_output_dir/HTMLElementTypeHelpers.h",
   ]
 }
 
 process_in_files("make_core_generated_svg_names") {
   script = "../build/scripts/make_element_factory.py"
 
   in_files = [
     "svg/SVGTagNames.in",
     "svg/SVGAttributeNames.in",
@@ skipping 781 matching lines @@
   sources = [
     "html/parser/HTMLPreloadScannerFuzzer.cpp",
     "html/parser/TextResourceDecoderForFuzzing.h",
   ]
   seed_corpus = "//third_party/WebKit/LayoutTests/fast/parser"
   deps = [
     ":core",
     "../platform:blink_fuzzer_test_support",
   ]
 }