Remove SVGZoomEvent interface and onzoom attribute

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 350 matching lines @@
             'svg/SVGTextElement.idl',
             'svg/SVGTextPathElement.idl',
             'svg/SVGTextPositioningElement.idl',
             'svg/SVGTitleElement.idl',
             'svg/SVGTransform.idl',
             'svg/SVGTransformList.idl',
             'svg/SVGUnitTypes.idl',
             'svg/SVGUseElement.idl',
             'svg/SVGViewElement.idl',
             'svg/SVGViewSpec.idl',
-            'svg/SVGZoomEvent.idl',
             'timing/MemoryInfo.idl',
             'timing/Performance.idl',
             'timing/PerformanceCompositeTiming.idl',
             'timing/PerformanceEntry.idl',
             'timing/PerformanceMark.idl',
             'timing/PerformanceMeasure.idl',
             'timing/PerformanceNavigation.idl',
             'timing/PerformanceObserver.idl',
             'timing/PerformanceObserverEntryList.idl',
             'timing/PerformanceRenderTiming.idl',
@@ skipping 105 matching lines @@
             '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/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': [
             'layout/api/HitTestAction.h',
             'layout/api/LayoutAPIShim.h',
@@ skipping 3181 matching lines @@
             'svg/SVGUnknownElement.cpp',
             'svg/SVGUnknownElement.h',
             'svg/SVGUseElement.cpp',
             'svg/SVGUseElement.h',
             'svg/SVGViewElement.cpp',
             'svg/SVGViewElement.h',
             'svg/SVGViewSpec.cpp',
             'svg/SVGViewSpec.h',
             'svg/SVGZoomAndPan.cpp',
             'svg/SVGZoomAndPan.h',
-            'svg/SVGZoomEvent.cpp',
-            'svg/SVGZoomEvent.h',
             'svg/animation/SMILTime.cpp',
             'svg/animation/SMILTimeContainer.cpp',
             'svg/animation/SMILTimeContainer.h',
             'svg/animation/SVGSMILElement.cpp',
             'svg/graphics/SVGImage.cpp',
             'svg/graphics/SVGImage.h',
             'svg/graphics/SVGImageChromeClient.cpp',
             'svg/graphics/SVGImageChromeClient.h',
             'svg/graphics/SVGImageForContainer.cpp',
             'svg/graphics/SVGImageForContainer.h',
@@ skipping 497 matching lines @@
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'timing/PerformanceBaseTest.cpp',
             'timing/PerformanceObserverTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'workers/WorkerThreadTestHelper.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }