Cleaning up PointerIdManager and add id re-mapping

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 2613 matching lines @@
             'events/MutationEvent.cpp',
             'events/MutationEvent.h',
             'events/NavigatorEvents.cpp',
             'events/NavigatorEvents.h',
             'events/NodeEventContext.cpp',
             'events/NodeEventContext.h',
             'events/PageTransitionEvent.cpp',
             'events/PageTransitionEvent.h',
             'events/PointerEvent.cpp',
             'events/PointerEvent.h',
-            'events/PointerIdManager.cpp',
-            'events/PointerIdManager.h',
+            'events/PointerEventFactory.cpp',
+            'events/PointerEventFactory.h',
             'events/PopStateEvent.cpp',
             'events/PopStateEvent.h',
             'events/ProgressEvent.cpp',
             'events/ProgressEvent.h',
             'events/PromiseRejectionEvent.cpp',
             'events/PromiseRejectionEvent.h',
             'events/RelatedEvent.cpp',
             'events/RelatedEvent.h',
             'events/ResourceProgressEvent.cpp',
             'events/ResourceProgressEvent.h',
@@ skipping 1189 matching lines @@
             'editing/iterators/SimplifiedBackwardsTextIteratorTest.cpp',
             'editing/iterators/TextIteratorTest.cpp',
             'editing/markers/DocumentMarkerControllerTest.cpp',
             'editing/PositionTest.cpp',
             'editing/SurroundingTextTest.cpp',
             'editing/VisiblePositionTest.cpp',
             'editing/VisibleSelectionTest.cpp',
             'editing/VisibleUnitsTest.cpp',
             'editing/serializers/StyledMarkupSerializerTest.cpp',
             'events/EventPathTest.cpp',
+            'events/PointerEventFactoryTest.cpp',
             'experiments/ExperimentsTest.cpp',
             'fetch/CachingCorrectnessTest.cpp',
             'fetch/ClientHintsPreferencesTest.cpp',
             'fetch/FetchUtilsTest.cpp',
             'fetch/ImageResourceTest.cpp',
             'fetch/MemoryCacheTest.cpp',
             'fetch/MockImageResourceClient.cpp',
             'fetch/RawResourceTest.cpp',
             'fetch/ResourceFetcherTest.cpp',
             'fetch/ResourceLoaderOptionsTest.cpp',
@@ skipping 78 matching lines @@
             'style/SVGComputedStyleTest.cpp',
             'svg/SVGPathParserTest.cpp',
             'svg/UnsafeSVGAttributeSanitizationTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'timing/MemoryInfoTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }