Rearrange the extensions API GYP file to be readable by GN.

chrome/common/extensions/api/api.gyp

 # Copyright (c) 2012 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.
 
 {
+  # All files are stored in these lists which are referenced in the target
+  # below so that the GN build of this target can read in this dictionary and
+  # duplicate the same logic without the lists getting out-of-sync. The GN
+  # .gypi reader can not process conditions and does not know about targets,
+  # etc., it just reads Python dictionaries.
+  #
+  # In addition, the GN build treats .idl files and .json files separately,
+  # since they run through different scripts. If you add a new category, also
+  # add it to the BUILD.gn file in this directory.
+  'variables': {
+    # These duplicate other lists and are the only ones used on Android. They
+    # should be eliminated. See crbug.com/305852.
+    'android_schema_files_idl': [
+      'file_system.idl',
+      'sync_file_system.idl',
+      'tab_capture.idl',
+    ],
+    'android_schema_files_json': [
+      'activity_log_private.json',
+      'events.json',
+      'manifest_types.json',
+      'permissions.json',
+      'tabs.json',
+      'types.json',
+      'webview.json',
+      'web_navigation.json',
+      'windows.json',
+    ],
+
+    # These are used everywhere except Android.
+    'main_schema_files_idl': [
+      'alarms.idl',
+      'app_current_window_internal.idl',
+      'app_window.idl',
+      'audio.idl',
+      'automation_internal.idl',
+      'automation.idl',
+      'autotest_private.idl',
+      'bluetooth.idl',
+      'bluetooth_low_energy.idl',
+      'bluetooth_socket.idl',
+      'browser.idl',
+      'braille_display_private.idl',
+      'cast_channel.idl',
+      'developer_private.idl',
+      'dial.idl',
+      'downloads.idl',
+      'downloads_internal.idl',
+      'feedback_private.idl',
+      'file_browser_private.idl',
+      'file_browser_private_internal.idl',
+      'file_system.idl',
+      'file_system_provider.idl',
+      'file_system_provider_internal.idl',
+      'gcd_private.idl',
+      'hangouts_private.idl',
+      'hid.idl',
+      'hotword_private.idl',
+      'identity.idl',
+      'identity_private.idl',
+      'image_writer_private.idl',
+      'location.idl',
+      'mdns.idl',
+      'media_galleries.idl',
+      'media_galleries_private.idl',
+      'notifications.idl',
+      'power.idl',
+      'push_messaging.idl',
+      'screenlock_private.idl',
+      'serial.idl',
+      'signed_in_devices.idl',
+      'streams_private.idl',
+      'sync_file_system.idl',
+      'synced_notifications_private.idl',
+      'system_cpu.idl',
+      'system_display.idl',
+      'system_indicator.idl',
+      'system_memory.idl',
+      'system_network.idl',
+      'system_storage.idl',
+      'tab_capture.idl',
+      # Despite the name, this API does not rely on any
+      # WebRTC-specific bits and as such does not belong in
+      # the enable_webrtc=0 section below.
+      'webrtc_audio_private.idl',
+      'webrtc_logging_private.idl',
+    ],
+    'main_schema_files_json': [
+      'accessibility_private.json',
+      'activity_log_private.json',
+      'bluetooth_private.json',
+      'bookmark_manager_private.json',
+      'bookmarks.json',
+      'cloud_print_private.json',
+      'command_line_private.json',
+      'content_settings.json',
+      'context_menus.json',
+      'context_menus_internal.json',
+      'cookies.json',
+      'debugger.json',
+      'desktop_capture.json',
+      'echo_private.json',
+      'enterprise_platform_keys_private.json',
+      'events.json',
+      'font_settings.json',
+      'gcm.json',
+      'guest_view_internal.json',
+      'history.json',
+      'i18n.json',
+      'idle.json',
+      'input_ime.json',
+      'management.json',
+      'manifest_types.json',
+      'metrics_private.json',
+      'networking_private.json',
+      'omnibox.json',
+      'page_capture.json',
+      'permissions.json',
+      'preferences_private.json',
+      'reading_list_private.json',
+      'sessions.json',
+      'system_private.json',
+      'tabs.json',
+      'terminal_private.json',
+      'types.json',
+      'virtual_keyboard_private.json',
+      'web_navigation.json',
+      'web_request.json',
+      'webstore_private.json',
+      'webview.json',
+      'windows.json',
+    ],
+    # The non-compiled shcema files don't need to be separated out by type
+    # since they're only given to the bundle script which doesn't care about
+    # type.
+    'main_non_compiled_schema_files': [
+      'browsing_data.json',
+      'chromeos_info_private.json',
+      'extension.json',
+      'idltest.idl',
+      'infobars.json',
+      'media_player_private.json',
+      'music_manager_private.idl',
+      'principals_private.idl',
+      'top_sites.json',
+      'web_request_internal.json',
+    ],
+
+    # ChromeOS-specific schemas.
+    'chromeos_schema_files_idl': [
+      'diagnostics.idl',
+      'enterprise_platform_keys.idl',
+      'enterprise_platform_keys_internal.idl',
+      'log_private.idl',
+      'webcam_private.idl',
+    ],
+    'chromeos_schema_files_json': [
+      'accessibility_features.json',
+      'file_browser_handler_internal.json',
+      'first_run_private.json',
+      'wallpaper.json',
+      'wallpaper_private.json',
+    ],
+    'chromeos_branded_schema_files_idl': [
+      'ledger/ledger.idl',
+    ],
+
+    'webrtc_schema_files_idl': [
+      'cast_streaming_rtp_stream.idl',
+      'cast_streaming_session.idl',
+      'cast_streaming_udp_transport.idl',
+    ],
+  },
   'targets': [
     {
       'target_name': 'chrome_api',
       'type': 'static_library',
       'sources': [
         '<@(schema_files)',
       ],
       # TODO(jschuh): http://crbug.com/167187 size_t -> int
       'msvs_disabled_warnings': [ 4267 ],
       'includes': [
         '../../../../build/json_schema_bundle_compile.gypi',
         '../../../../build/json_schema_compile.gypi',
       ],
       'variables': {
         'chromium_code': 1,
         # Disable schema compiler to generate model extension API code.
         # Only register the extension functions in extension system.
         'conditions': [
           ['OS!="android"', {
             'non_compiled_schema_files': [
-              'browsing_data.json',
-              'chromeos_info_private.json',
-              'extension.json',
-              'idltest.idl',
-              'infobars.json',
-              'media_player_private.json',
-              'music_manager_private.idl',
-              'principals_private.idl',
-              'top_sites.json',
-              'web_request_internal.json',
+              '<@(main_non_compiled_schema_files)',
             ],
             'schema_files': [
-              'accessibility_private.json',
-              'activity_log_private.json',
-              'alarms.idl',
-              'app_current_window_internal.idl',
-              'app_window.idl',
-              'audio.idl',
-              'automation_internal.idl',
-              'automation.idl',
-              'autotest_private.idl',
-              'bluetooth.idl',
-              'bluetooth_low_energy.idl',
-              'bluetooth_private.json',
-              'bluetooth_socket.idl',
-              'bookmark_manager_private.json',
-              'bookmarks.json',
-              'browser.idl',
-              'braille_display_private.idl',
-              'cast_channel.idl',
-              'cloud_print_private.json',
-              'command_line_private.json',
-              'content_settings.json',
-              'context_menus.json',
-              'context_menus_internal.json',
-              'cookies.json',
-              'debugger.json',
-              'desktop_capture.json',
-              'developer_private.idl',
-              'dial.idl',
-              'downloads.idl',
-              'downloads_internal.idl',
-              'echo_private.json',
-              'enterprise_platform_keys_private.json',
-              'events.json',
-              'feedback_private.idl',
-              'file_browser_private.idl',
-              'file_browser_private_internal.idl',
-              'file_system.idl',
-              'file_system_provider.idl',
-              'file_system_provider_internal.idl',
-              'font_settings.json',
-              'gcd_private.idl',
-              'gcm.json',
-              'guest_view_internal.json',
-              'hangouts_private.idl',
-              'hid.idl',
-              'history.json',
-              'hotword_private.idl',
-              'i18n.json',
-              'identity.idl',
-              'identity_private.idl',
-              'idle.json',
-              'image_writer_private.idl',
-              'input_ime.json',
-              'location.idl',
-              'management.json',
-              'manifest_types.json',
-              'mdns.idl',
-              'media_galleries.idl',
-              'media_galleries_private.idl',
-              'metrics_private.json',
-              'networking_private.json',
-              'notifications.idl',
-              'omnibox.json',
-              'page_capture.json',
-              'permissions.json',
-              'preferences_private.json',
-              'power.idl',
-              'push_messaging.idl',
-              'reading_list_private.json',
-              'screenlock_private.idl',
-              'serial.idl',
-              'sessions.json',
-              'signed_in_devices.idl',
-              'streams_private.idl',
-              'sync_file_system.idl',
-              'synced_notifications_private.idl',
-              'system_cpu.idl',
-              'system_display.idl',
-              'system_indicator.idl',
-              'system_memory.idl',
-              'system_network.idl',
-              'system_private.json',
-              'system_storage.idl',
-              'tab_capture.idl',
-              'tabs.json',
-              'terminal_private.json',
-              'types.json',
-              'virtual_keyboard_private.json',
-              'web_navigation.json',
-              'web_request.json',
-              # Despite the name, this API does not rely on any
-              # WebRTC-specific bits and as such does not belong in
-              # the enable_webrtc=0 section below.
-              'webrtc_audio_private.idl',
-              'webrtc_logging_private.idl',
-              'webstore_private.json',
-              'webview.json',
-              'windows.json',
+              '<@(main_schema_files_idl)',
+              '<@(main_schema_files_json)',
             ],
           }, {  # OS=="android"
             'non_compiled_schema_files': [
             ],
             'schema_files': [
               # These should be eliminated. See crbug.com/305852.
-              'activity_log_private.json',
-              'events.json',
-              'file_system.idl',
-              'manifest_types.json',
-              'permissions.json',
-              'sync_file_system.idl',
-              'tab_capture.idl',
-              'tabs.json',
-              'types.json',
-              'webview.json',
-              'web_navigation.json',
-              'windows.json',
+              '<@(android_schema_files_idl)',
+              '<@(android_schema_files_json)',
             ],
           }],
           ['chromeos==1', {
             'schema_files': [
-              'accessibility_features.json',
-              'diagnostics.idl',
-              'enterprise_platform_keys.idl',
-              'enterprise_platform_keys_internal.idl',
-              'file_browser_handler_internal.json',
-              'first_run_private.json',
-              'log_private.idl',
-              'wallpaper.json',
-              'wallpaper_private.json',
-              'webcam_private.idl',
+              '<@(chromeos_schema_files_idl)',
+              '<@(chromeos_schema_files_json)',
             ],
           }],
           ['enable_webrtc==1', {
             'schema_files': [
-              'cast_streaming_rtp_stream.idl',
-              'cast_streaming_session.idl',
-              'cast_streaming_udp_transport.idl',
+              '<@(webrtc_schema_files_idl)',
             ],
           }],
           ['branding=="Chrome" and chromeos==1', {
             'schema_files': [
-              'ledger/ledger.idl',
+              '<@(chromeos_branded_schema_files_idl)',
             ],
           }],
         ],
         'cc_dir': 'chrome/common/extensions/api',
         'root_namespace': 'extensions::api',
       },
       'dependencies': [
         '<(DEPTH)/content/content.gyp:content_browser',
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/sync/sync.gyp:sync',
       ],
       'conditions': [
         ['chromeos==1', {
           'dependencies': [
             '<(DEPTH)/chrome/chrome.gyp:drive_proto',
           ],
         }],
       ],
     },
   ],
 }