Inline extensions .gypi files into GN build.

extensions/common/api/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/features.gni")
 import("//build/json_schema_api.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
-import("schemas.gni")
 
 assert(enable_extensions)
 
+schema_files = [
+  "alarms.idl",
+  "app_current_window_internal.idl",
+  "app_runtime.idl",
+  "app_view_guest_internal.json",
+  "app_window.idl",
+  "audio.idl",
+  "bluetooth.idl",
+  "bluetooth_private.idl",
+  "bluetooth_socket.idl",
+  "cast_channel.idl",
+  "clipboard.idl",
+  "document_scan.idl",
+  "display_source.idl",
+  "dns.idl",
+  "events.json",
+  "extensions_manifest_types.json",
+  "extension_options_internal.idl",
+  "extension_view_internal.json",
+  "extension_types.json",
+  "guest_view_internal.json",
+  "management.json",
+  "hid.idl",
+  "idle.json",
+  "mime_handler_private.idl",
+  "mime_handler_view_guest_internal.json",
+  "mojo_private.idl",
+  "networking_private.idl",
+  "power.idl",
+  "printer_provider.idl",
+  "printer_provider_internal.idl",
+  "runtime.json",
+  "serial.idl",
+  "socket.idl",
+  "sockets_tcp.idl",
+  "sockets_tcp_server.idl",
+  "sockets_udp.idl",
+  "storage.json",
+  "system_cpu.idl",
+  "system_display.idl",
+  "system_memory.idl",
+  "system_network.idl",
+  "system_storage.idl",
+  "test.json",
+  "usb.idl",
+  "virtual_keyboard_private.json",
+  "web_request.json",
+  "web_view_internal.json",
+]
+
+if (is_chromeos) {
+  schema_files += [
+    "diagnostics.idl",
+    "networking_config.idl",
+    "vpn_provider.idl",
+    "webcam_private.idl",
+  ]
+}
+
+uncompiled_sources = [ "web_request_internal.json" ]
+
+uncompiled_bundle_schema_sources = [
+  "declarative_web_request.json",
+  "web_view_request.json",
+]
+
+root_namespace = "extensions::api::%(namespace)s"
+
 json_schema_api("generated_api") {
+  sources = schema_files
   schemas = true
   bundle = true
   bundle_name = ""
+
+  # Inherit uncompiled_sources, uncompiled_bundle_schema_sources, and
+  # root_namespace.
 }
 
-# GYP version: extensions/common/api/api.gyp:extensions_api_mojom
 mojom("mojom") {
-  sources = []
   sources = [
     "mime_handler.mojom",
   ]
 
   use_new_wrapper_types = false
 }
 
-# GYP version: extensions/common/api/api.gyp:extensions_api
 group("api") {
   public_deps = [
     ":generated_api",
     ":mojom",
   ]
 }
 
-# GYP version: extensions/browser/api/api_registration.gyp:extensions_api_registration
 json_schema_api("api_registration") {
+  sources = schema_files
   impl_dir = "//extensions/browser/api"
   bundle_registration = true
   bundle_name = ""
 
   deps = [
     ":api",
     "//device/serial",
     "//extensions/common/api/cast_channel:cast_channel_proto",
     "//skia",
   ]
+
+  # Inherit uncompiled_sources, uncompiled_bundle_schema_sources, and
+  # root_namespace.
 }