Remove prefixed EME.

third_party/WebKit/Source/core/core.gypi

 {
     'includes': [
         'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/KeyframeEffect.idl',
             'animation/EffectModel.idl',
             'animation/AnimationEffectReadOnly.idl',
@@ skipping 218 matching lines @@
             'html/HTMLTableRowElement.idl',
             'html/HTMLTableSectionElement.idl',
             'html/HTMLTemplateElement.idl',
             'html/HTMLTextAreaElement.idl',
             'html/HTMLTitleElement.idl',
             'html/HTMLTrackElement.idl',
             'html/HTMLUListElement.idl',
             'html/HTMLUnknownElement.idl',
             'html/ImageData.idl',
             'html/MediaError.idl',
-            'html/MediaKeyError.idl',
-            'html/MediaKeyEvent.idl',
             'html/RadioNodeList.idl',
             'html/TextMetrics.idl',
             'html/TimeRanges.idl',
             'html/ValidityState.idl',
             'html/VoidCallback.idl',
             'html/canvas/OffScreenCanvas.idl',
             'html/track/AudioTrack.idl',
             'html/track/AudioTrackList.idl',
             'html/track/TextTrack.idl',
             'html/track/TextTrackCue.idl',
@@ skipping 232 matching lines @@
             'events/ProgressEvent.idl',
             'events/PromiseRejectionEvent.idl',
             'events/RelatedEvent.idl',
             'events/ResourceProgressEvent.idl',
             'events/SecurityPolicyViolationEvent.idl',
             'events/TextEvent.idl',
             'events/TouchEvent.idl',
             'events/TransitionEvent.idl',
             'events/UIEvent.idl',
             'events/WheelEvent.idl',
-            'html/MediaKeyEvent.idl',
             'html/track/TrackEvent.idl',
             'svg/SVGZoomEvent.idl',
         ],
         # IDL files that only have typedefs/enums.
         'core_typedefs_enums_only_idl_files': [
             'dom/CommonDefinitions.idl',
             'timing/DOMHighResTimeStamp.idl',
             'timing/PerformanceEntryList.idl',
         ],
         'webcore_rendering_files': [
@@ skipping 2408 matching lines @@
             'html/LinkManifest.h',
             'html/LinkRelAttribute.cpp',
             'html/LinkRelAttribute.h',
             'html/LinkResource.cpp',
             'html/LinkResource.h',
             'html/MediaDocument.cpp',
             'html/MediaDocument.h',
             'html/MediaError.h',
             'html/MediaFragmentURIParser.cpp',
             'html/MediaFragmentURIParser.h',
-            'html/MediaKeyError.h',
-            'html/MediaKeyEvent.cpp',
-            'html/MediaKeyEvent.h',
             'html/PluginDocument.cpp',
             'html/PluginDocument.h',
             'html/PublicURLManager.cpp',
             'html/PublicURLManager.h',
             'html/RadioNodeList.cpp',
             'html/RadioNodeList.h',
             'html/RelList.cpp',
             'html/RelList.h',
             'html/TextDocument.cpp',
             'html/TextDocument.h',
@@ skipping 685 matching lines @@
             'events/SecurityPolicyViolationEventInit.idl',
             'events/TouchEventInit.idl',
             'events/TransitionEventInit.idl',
             'events/UIEventInit.idl',
             'events/WheelEventInit.idl',
             'fileapi/BlobPropertyBag.idl',
             'fileapi/FilePropertyBag.idl',
             'frame/ScrollOptions.idl',
             'frame/ScrollToOptions.idl',
             'html/AssignedNodesOptions.idl',
-            'html/MediaKeyEventInit.idl',
             'html/canvas/CanvasContextCreationAttributes.idl',
             'html/track/TrackEventInit.idl',
             'imagebitmap/ImageBitmapOptions.idl',
             'input/InputDeviceCapabilitiesInit.idl',
             'page/EventSourceInit.idl',
             'page/scrolling/ScrollStateInit.idl',
             'timing/PerformanceObserverInit.idl',
         ],
         'generated_core_dictionary_files': [
             '<(blink_core_output_dir)/animation/KeyframeEffectOptions.cpp',
@@ skipping 79 matching lines @@
             '<(blink_core_output_dir)/fileapi/BlobPropertyBag.cpp',
             '<(blink_core_output_dir)/fileapi/BlobPropertyBag.h',
             '<(blink_core_output_dir)/fileapi/FilePropertyBag.cpp',
             '<(blink_core_output_dir)/fileapi/FilePropertyBag.h',
             '<(blink_core_output_dir)/frame/ScrollOptions.cpp',
             '<(blink_core_output_dir)/frame/ScrollOptions.h',
             '<(blink_core_output_dir)/frame/ScrollToOptions.cpp',
             '<(blink_core_output_dir)/frame/ScrollToOptions.h',
             '<(blink_core_output_dir)/html/AssignedNodesOptions.cpp',
             '<(blink_core_output_dir)/html/AssignedNodesOptions.h',
-            '<(blink_core_output_dir)/html/MediaKeyEventInit.cpp',
-            '<(blink_core_output_dir)/html/MediaKeyEventInit.h',
             '<(blink_core_output_dir)/html/canvas/CanvasContextCreationAttributes.cpp',
             '<(blink_core_output_dir)/html/canvas/CanvasContextCreationAttributes.h',
             '<(blink_core_output_dir)/html/track/TrackEventInit.cpp',
             '<(blink_core_output_dir)/html/track/TrackEventInit.h',
             '<(blink_core_output_dir)/imagebitmap/ImageBitmapOptions.cpp',
             '<(blink_core_output_dir)/imagebitmap/ImageBitmapOptions.h',
             '<(blink_core_output_dir)/input/InputDeviceCapabilitiesInit.cpp',
             '<(blink_core_output_dir)/input/InputDeviceCapabilitiesInit.h',
             '<(blink_core_output_dir)/page/EventSourceInit.cpp',
             '<(blink_core_output_dir)/page/EventSourceInit.h',
@@ skipping 280 matching lines @@
             'style/SVGComputedStyleTest.cpp',
             'svg/SVGPathParserTest.cpp',
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }