Move json schema compiler target into build/ to match gyp

build/json_schema_bundle_registration_compile.gypi

 # 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.
 
 {
   'variables': {
     # When including this gypi, the following variables must be set:
     #   schema_files:
     #     An array of json or idl files that comprise the api model.
     #   impl_dir_:
@@ skipping 17 matching lines @@
       '<(api_gen_dir)/cpp_util.py',
       '<(api_gen_dir)/h_generator.py',
       '<(api_gen_dir)/idl_schema.py',
       '<(api_gen_dir)/json_schema.py',
       '<(api_gen_dir)/model.py',
       '<(api_gen_dir)/util_cc_helper.py',
     ],
   },
   'actions': [
     {
-      # GN version: //extensions/generated_extensions_api.gni
+      # GN version: json_schema_compile.gni
       'action_name': 'genapi_bundle_registration',
       'inputs': [
         '<@(generator_files)',
         '<@(schema_files)',
         '<@(non_compiled_schema_files)',
       ],
       'outputs': [
         '<(SHARED_INTERMEDIATE_DIR)/<(impl_dir_)/generated_api_registration.h',
         '<(SHARED_INTERMEDIATE_DIR)/<(impl_dir_)/generated_api_registration.cc',
       ],
@@ skipping 20 matching lines @@
   ],
   'direct_dependent_settings': {
     'include_dirs': [
       '<(SHARED_INTERMEDIATE_DIR)',
     ]
   },
   # This target exports a hard dependency because it generates header
   # files.
   'hard_dependency': 1,
 }