Add PeriodicWaveConstraints dictionary

third_party/WebKit/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 513 matching lines @@
       'serviceworkers/FetchEventInit.idl',
       'serviceworkers/ForeignFetchEventInit.idl',
       'serviceworkers/ForeignFetchOptions.idl',
       'serviceworkers/ForeignFetchResponse.idl',
       'serviceworkers/RegistrationOptions.idl',
       'serviceworkers/ServiceWorkerMessageEventInit.idl',
       'speech/SpeechRecognitionErrorInit.idl',
       'speech/SpeechRecognitionEventInit.idl',
       'storage/StorageEventInit.idl',
       'vr/VRFieldOfViewInit.idl',
+      'webaudio/PeriodicWaveConstraints.idl',
       'webgl/WebGLContextAttributes.idl',
       'webgl/WebGLContextEventInit.idl',
       'webmidi/MIDIConnectionEventInit.idl',
       'webmidi/MIDIMessageEventInit.idl',
       'webmidi/MIDIOptions.idl',
       'websockets/CloseEventInit.idl',
       'webusb/USBConnectionEventInit.idl',
       'webusb/USBControlTransferParameters.idl',
       'webusb/USBDeviceFilter.idl',
       'webusb/USBDeviceRequestOptions.idl',
@@ skipping 167 matching lines @@
       '<(blink_modules_output_dir)/serviceworkers/ServiceWorkerMessageEventInit.cpp',
       '<(blink_modules_output_dir)/serviceworkers/ServiceWorkerMessageEventInit.h',
       '<(blink_modules_output_dir)/speech/SpeechRecognitionErrorInit.cpp',
       '<(blink_modules_output_dir)/speech/SpeechRecognitionErrorInit.h',
       '<(blink_modules_output_dir)/speech/SpeechRecognitionEventInit.cpp',
       '<(blink_modules_output_dir)/speech/SpeechRecognitionEventInit.h',
       '<(blink_modules_output_dir)/storage/StorageEventInit.cpp',
       '<(blink_modules_output_dir)/storage/StorageEventInit.h',
       '<(blink_modules_output_dir)/vr/VRFieldOfViewInit.cpp',
       '<(blink_modules_output_dir)/vr/VRFieldOfViewInit.h',
+      '<(blink_modules_output_dir)/webaudio/PeriodicWaveConstraints.cpp',
+      '<(blink_modules_output_dir)/webaudio/PeriodicWaveConstraints.h',
       '<(blink_modules_output_dir)/webgl/WebGLContextAttributes.cpp',
       '<(blink_modules_output_dir)/webgl/WebGLContextAttributes.h',
       '<(blink_modules_output_dir)/webgl/WebGLContextEventInit.cpp',
       '<(blink_modules_output_dir)/webgl/WebGLContextEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIConnectionEventInit.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIConnectionEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIMessageEventInit.h',
       '<(blink_modules_output_dir)/webmidi/MIDIMessageEventInit.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.cpp',
       '<(blink_modules_output_dir)/webmidi/MIDIOptions.h',
@@ skipping 1276 matching lines @@
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'webdatabase/QuotaTrackerTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }