Remove unnecessary usages of DEFINE_TYPE_CASTS()

- Remove DEFINE_DOCUMENT_TYPE_CASTS() macro
  It's not used.

- Remove DEFINE_TRACK_TYPE_CASTS() macro
  It's not used.

- Remove DEFINE_TYPE_CASTS() for PresentationConnectionAvailableEvent
  The code generated by this DEFINE_TYPE_CASTS() are not used.

This CL has no behavior changes.

Bug: 891908
Change-Id: I8a60227c042f85c7d25184258e105b1ba2a9eebb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2546393
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Auto-Submit: Kent Tamura <tkent@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828826}

third_party/blink/renderer/core/dom/document.h

@@ -2240,10 +2240,6 @@ inline void Document::ScheduleLayoutTreeUpdateIfNeeded() {
     ScheduleLayoutTreeUpdate();
 }
 
-#define DEFINE_DOCUMENT_TYPE_CASTS(thisType)                                \
-  DEFINE_TYPE_CASTS(thisType, Document, document, document->Is##thisType(), \
-                    document.Is##thisType())
-
 // This is needed to avoid ambiguous overloads with the Node and TreeScope
 // versions.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES(Document)

third_party/blink/renderer/core/html/track/track_base.h

@@ -70,10 +70,6 @@ class CORE_EXPORT TrackBase : public Supplementable<TrackBase> {
   Member<HTMLMediaElement> media_element_;
 };
 
-#define DEFINE_TRACK_TYPE_CASTS(thisType, predicate)                           \
-  DEFINE_TYPE_CASTS(thisType, TrackBase, track, track->GetType() == predicate, \
-                    track.GetType() == predicate)
-
 }  // namespace blink
 
 #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_TRACK_TRACK_BASE_H_

third_party/blink/renderer/modules/presentation/presentation_connection_available_event.h

@@ -50,15 +50,6 @@ class PresentationConnectionAvailableEvent final : public Event {
   Member<PresentationConnection> connection_;
 };
 
-DEFINE_TYPE_CASTS(
-    PresentationConnectionAvailableEvent,
-    Event,
-    event,
-    event->InterfaceName() ==
-        event_interface_names::kPresentationConnectionAvailableEvent,
-    event.InterfaceName() ==
-        event_interface_names::kPresentationConnectionAvailableEvent);
-
 }  // namespace blink
 
 #endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_PRESENTATION_PRESENTATION_CONNECTION_AVAILABLE_EVENT_H_