IDL: Generate union type containers

Source/bindings/modules/v8/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("//third_party/WebKit/Source/bindings/modules/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/scripts/scripts.gni")
 import("//third_party/WebKit/Source/modules/modules.gni")
 
 visibility = [ "//third_party/WebKit/*" ]
 
 core_idl_with_modules_dependency_files_list = "$target_gen_dir/core_idl_with_modules_dependency_files.tmp"
 write_file(core_idl_with_modules_dependency_files_list,
            rebase_path(core_idl_with_modules_dependency_files, root_build_dir))
 
 # bindings_modules_generated in modules/v8/generated.gyp
 group("bindings_modules_generated") {
   deps = [
-    ":bindings_modules_dictionary_impl_generated",
+    ":bindings_modules_impl_generated",
     ":bindings_modules_v8_generated_aggregate",
     ":bindings_modules_v8_generated_individual",
     ":bindings_modules_v8_generated_init_partial",
     ":bindings_modules_v8_generated_partial_aggregate",
     ":bindings_modules_v8_generated_partial_individual",
   ]
 }
 
 # bindings_modules_generated_aggregate in modules/v8/generated.gyp
 aggregate_generated_bindings("bindings_modules_v8_generated_aggregate") {
   sources = modules_definition_idl_files
   component_dir = "modules"
   outputs = bindings_modules_generated_aggregate_files
 }
 
 # bindings_modules_generated_individual in modules/v8/generated.gyp
 idl_compiler("bindings_modules_v8_generated_individual") {
   # Note in GYP this is modules_interface_idl_files but this variable is just
   # defined to modules_definition_idl_files.
   sources = modules_definition_idl_files
   output_dir = bindings_modules_v8_output_dir
   output_name_suffix = ""
   target_component = "modules"
 }
 
-# bindings_modules_dictionary_impl_generated in modules/v8/generated.gyp
-idl_dictionary("bindings_modules_dictionary_impl_generated") {
+# bindings_modules_impl_generated in modules/v8/generated.gyp
+idl_impl("bindings_modules_impl_generated") {
   sources = modules_dictionary_idl_files
-  outputs = generated_modules_dictionary_files
+  outputs = bindings_modules_generated_union_type_files +
+    generated_modules_dictionary_files
+  output_dir = bindings_modules_v8_output_dir
+  target_component = "modules"
+  individual_info =
+    "$bindings_modules_output_dir/InterfacesInfoModulesIndividual.pickle"
 }
 
 # bindings_modules_generated_individual in modules/v8/generated.gyp
 idl_compiler("bindings_modules_v8_generated_partial_individual") {
   # Note in GYP this is modules_interface_idl_files but this variable is just
   # defined to modules_definition_idl_files.
   sources = core_idl_with_modules_dependency_files + webcore_testing_idl_with_modules_dependency_files
   output_dir = bindings_modules_v8_output_dir
   output_name_suffix = "Partial"
   target_component = "modules"
@@ skipping 22 matching lines @@
     "--output",
     rebase_path(bindings_modules_generated_init_partial_interfaces_file, root_build_dir),
     "--write-file-only-if-changed=1",
   ]
 
   deps = [
     "//third_party/WebKit/Source/bindings/modules:interfaces_info",
   ]
 }