Remove EventSender from HTMLSourceElement

third_party/WebKit/Source/core/html/HTMLSourceElement.h

Index: third_party/WebKit/Source/core/html/HTMLSourceElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLSourceElement.h b/third_party/WebKit/Source/core/html/HTMLSourceElement.h
index d7d92e365d75c381cc9371770416ca834107f98f..ff13cb61c9fe6addcc220a208a874903a053a3d2 100644
--- a/third_party/WebKit/Source/core/html/HTMLSourceElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLSourceElement.h
@@ -32,10 +32,6 @@
 
 namespace blink {
 
-template <typename T>
-class EventSender;
-using SourceEventSender = EventSender<HTMLSourceElement>;
-
 class HTMLSourceElement final : public HTMLElement {
   DEFINE_WRAPPERTYPEINFO();
 
@@ -52,8 +48,6 @@ class HTMLSourceElement final : public HTMLElement {
   void scheduleErrorEvent();
   void cancelPendingErrorEvent();
 
-  void dispatchPendingEvent(SourceEventSender*);
-
   bool mediaQueryMatches() const;
 
   void removeMediaQueryListListener();
@@ -64,6 +58,8 @@ class HTMLSourceElement final : public HTMLElement {
  private:
   explicit HTMLSourceElement(Document&);
 
+  void dispatchPendingEvent();
+
   void didMoveToNewDocument(Document& oldDocument) override;
 
   InsertionNotificationRequest insertedInto(ContainerNode*) override;
@@ -78,6 +74,7 @@ class HTMLSourceElement final : public HTMLElement {
 
   Member<MediaQueryList> m_mediaQueryList;
   Member<Listener> m_listener;
+  TaskHandle m_pendingErrorEvent;
 };
 
 }  // namespace blink