Encoding API: Add TextDecodeOptions and TextDecoderOptions

Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 258 matching lines @@
       'speech/SpeechRecognitionError.idl',
       'speech/SpeechRecognitionEvent.idl',
       'speech/SpeechSynthesisEvent.idl',
       'webaudio/AudioProcessingEvent.idl',
       'webaudio/OfflineAudioCompletionEvent.idl',
       'webmidi/MIDIConnectionEvent.idl',
       'webmidi/MIDIMessageEvent.idl',
       'websockets/CloseEvent.idl',
     ],
     'modules_dictionary_idl_files': [
+      'encoding/TextDecodeOptions.idl',
+      'encoding/TextDecoderOptions.idl',
       'notifications/NotificationOptions.idl',
       'webmidi/MIDIOptions.idl',
     ],
     'generated_modules_files': [
       # .cpp files from make_modules_generated actions.
       '<(blink_modules_output_dir)/EventModules.cpp',
       '<(blink_modules_output_dir)/EventModulesHeaders.h',
       '<(blink_modules_output_dir)/EventModulesNames.cpp',
       '<(blink_modules_output_dir)/EventModulesNames.h',
       '<(blink_modules_output_dir)/EventTargetModulesNames.cpp',
       '<(blink_modules_output_dir)/EventTargetModulesNames.h',
       '<(blink_modules_output_dir)/IndexedDBNames.cpp',
       '<(blink_modules_output_dir)/IndexedDBNames.h',
     ],
     'generated_modules_dictionary_files': [
+      '<(blink_modules_output_dir)/encoding/TextDecodeOptions.cpp',
+      '<(blink_modules_output_dir)/encoding/TextDecodeOptions.h',
+      '<(blink_modules_output_dir)/encoding/TextDecoderOptions.cpp',
+      '<(blink_modules_output_dir)/encoding/TextDecoderOptions.h',
       '<(blink_modules_output_dir)/notifications/NotificationOptions.cpp',
       '<(blink_modules_output_dir)/notifications/NotificationOptions.h',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.h',
     ],
     'modules_files': [
       '<@(extra_blink_module_files)',
       '<@(generated_modules_dictionary_files)',
       '<@(generated_modules_files)',
       'InitModules.cpp',
@@ skipping 717 matching lines @@
       'serviceworkers/ServiceWorkerContainerTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/NewWebSocketChannelImplTest.cpp',
       'websockets/WebSocketDeflaterTest.cpp',
       'websockets/WebSocketExtensionDispatcherTest.cpp',
       'websockets/WebSocketExtensionParserTest.cpp',
       'websockets/WebSocketPerMessageDeflateTest.cpp',
     ],
   },
 }