Organize renderer/core and renderer/core/dom (http://crbug.com/738794)

	A	B	C	D	E	F	G
1	Feature	Spec	Destination (can be a new directory)	OWNERS file there?	Files in Soucr/core/dom	Moved?	Comment

2	Custom Elements	https://html.spec.whatwg.org/#custom-elements	core/html/custom	No	core/dom/custom/*	Done
3
4	Shadow DOM	https://dom.spec.whatwg.org/	core/dom	Added	core/dom/shadow/*	Done
5
6	WebIDL		core/webidl?		CommonDefinitions		It might not be worth moving?
7
8	XXXX?	NA	core/frame?		ChildFrameDisconnector		I didn't look these files deeper. Please update this.
9					CompositorWorkerProxyClient		I think this is more related to compositing / graphics stuff, so probably not frame? It's somewhat related to AnimationWorkletProxyClient
10					ContextFeatures
11					ContextFeaturesClientImpl
12					ContextLifecycleNotifier
13					FrameRequestCallback		This is related to requestAnimationFrame, and should probably be in the same place as CompositorWorkerClient.
14					FrameRequestCallbackCollection		See above.
15					ViewportDescription
16	Animation
17			core/animation?		AnimationWorkletProxyClient
18					ScriptedAnimationController		core/script, as in ScriptedIdleTaskController?
19	Geometry
20		https://drafts.fxtf.org/geometry/	core/geometry	Yes	ClientRect	Done	CL: https://chromium-review.googlesource.com/c/559978/
21					ClientRectList	Done
22	CSS Selector
23		https://drafts.csswg.org/selectors-4/	core/css		CSSSelectorWatch	done
24					SelectRuleFeatureSet	done
25					SelectorQuery	done
26	Events
27		https://w3c.github.io/uievents/	core/events		SimulatedClickOptions	done	Moved to dom/events/
28		https://w3c.github.io/touch-events/			Touch	done
29					TouchInit	done
30					TouchList	done
31	DOM Events		(From core/events ->) core/dom/events
32					AddEventListenerOptions	Done
33					AddEventListenerOptionsDefaults	Done
34					AddEventListenerOptionsResolved	Done
35					CustomEvent	Done
36					CustomEventInit	Done
37					DOMWindowEventQueue	Done
38					Event	Done
39					EventDispatcher	Done
40					EventDispatchMediator	Done
41					EventDispatchResult	Done
42					EventInit	Done
43					EventListener	Done
44					EventListenerMap	Done
45					EventListenerOptions	Done
46					EventModifierInit	Done
47					EventPath	Done
48					EventPathTest	Done
49					EventQueue	Done
50					EventTarget	Done
51					EventTargetTest	Done
52					ListenerLeakTest	Done
53					MediaElementEventQueue	Done
54					NodeEventContext	Done
55					ScopedEventQueue	Done
56					TreeScopeEventContext	Done
57					WindowEventContext	Done
58	Style
59			core/css or core/css/resolver		DocumentStyleSheetCollection	done	moving to core/css, per Rune's advice (for later reorg within css)
60					DocumentStyleSheetCollector	done
61					ShadowTreeStyleSheetCollection	done
62					StyleChangeReason	done
63					StyleElement (-> core/html?)	done	moved to core/css
64					StyleEngine	done
65					StyleEngineContext	done
66					StyleSheetCandidate	done
67					StyleSheetCollection	done
68					TreeScopeStyleSheetCollection	done
69					stylerecalc.md	done
70	Accessibility
71			moduels/accessibility/		AXObjectCache		Can't move to modules/accessibility because it violates the rule
72			core/accessibility/		AXObjectCacheBase
73					AccessibleNode
74					and others...
75	TrustedTypes		core/trustedtypes			Done
76
77	ECMAScript datatype
78		http://www.ecma-international.org/ecma-262/6.0/#sec-arraybuffer-constructor	core/typed_arrays	Didn't add	ArrayBuffer.idl	Done
79					ArrayBufferView	Done
80					ArrayBufferViewHelpers	Done
81					DOMArrayBuffer	Done	should be renamed to ArrayBuffer
82					DOMArrayBufferView	Done	ditto
83					DOMArrayPiece	Done	ditto
84					DOMDataView	Done	ditto
85					DOMSharedArrayBuffer	Done	ditto
86					DOMTypedArray	Done	ditto
87					DataView.idl	Done
88					FlexibleArrayBufferView	Done
89					Float32Array	Done
90					Float64Array	Done
91					Int16Array	Done
92					Int32Array	Done
93					Int8Array	Done
94					SharedArrayBuffer	Done
95					TypedFlexibleArrayBufferView	Done
96					Uint16Array	Done
97					Uint32Array	Done
98					Uint8Array	Done
99					Uint8ClampedArray	Done
100	URL