1 files changed, 5 insertions, 61 deletions
diff --git a/chromium/third_party/blink/renderer/modules/media_controls/elements/media_control_panel_element.cc b/chromium/third_party/blink/renderer/modules/media_controls/elements/media_control_panel_element.cc
index 1f863f883ec..a6b4645ea31 100644
--- a/chromium/third_party/blink/renderer/modules/media_controls/elements/media_control_panel_element.cc
+++ b/chromium/third_party/blink/renderer/modules/media_controls/elements/media_control_panel_element.cc
@@ -6,7 +6,6 @@
 
 #include "third_party/blink/public/platform/task_type.h"
 #include "third_party/blink/renderer/core/dom/events/event.h"
-#include "third_party/blink/renderer/core/dom/events/native_event_listener.h"
 #include "third_party/blink/renderer/core/html/media/html_media_element.h"
 #include "third_party/blink/renderer/modules/media_controls/elements/media_control_elements_helper.h"
 #include "third_party/blink/renderer/modules/media_controls/media_controls_impl.h"
@@ -21,61 +20,6 @@ const char kTransparentClassName[] = "transparent";
 
 }  // anonymous namespace
 
-// Listens for the 'transitionend' event.
-class MediaControlPanelElement::TransitionEventListener final
-    : public NativeEventListener {
- public:
-  using Callback = base::RepeatingCallback<void()>;
-
-  // |element| is the element to listen for the 'transitionend' event on.
-  // |callback| is the callback to call when the event is handled.
-  explicit TransitionEventListener(Element* element, Callback callback)
-      : callback_(callback), element_(element) {
-    DCHECK(callback_);
-    DCHECK(element_);
-  }
-
-  void Attach() {
-    DCHECK(!attached_);
-    attached_ = true;
-
-    element_->addEventListener(event_type_names::kTransitionend, this, false);
-  }
-
-  void Detach() {
-    DCHECK(attached_);
-    attached_ = false;
-
-    element_->removeEventListener(event_type_names::kTransitionend, this,
-                                  false);
-  }
-
-  bool IsAttached() const { return attached_; }
-
-  void Invoke(ExecutionContext* context, Event* event) override {
-    if (event->target() != element_)
-      return;
-
-    if (event->type() == event_type_names::kTransitionend) {
-      callback_.Run();
-      return;
-    }
-
-    NOTREACHED();
-  }
-
-  void Trace(blink::Visitor* visitor) override {
-    NativeEventListener::Trace(visitor);
-    visitor->Trace(element_);
-  }
-
- private:
-  bool attached_ = false;
-
-  Callback callback_;
-  Member<Element> element_;
-};
-
 MediaControlPanelElement::MediaControlPanelElement(
     MediaControlsImpl& media_controls)
     : MediaControlDivElement(media_controls), event_listener_(nullptr) {
@@ -148,11 +92,11 @@ bool MediaControlPanelElement::EventListenerIsAttachedForTest() const {
 void MediaControlPanelElement::EnsureTransitionEventListener() {
   // Create the event listener if it doesn't exist.
   if (!event_listener_) {
-    event_listener_ =
-        MakeGarbageCollected<MediaControlPanelElement::TransitionEventListener>(
-            this, WTF::BindRepeating(
-                      &MediaControlPanelElement::HandleTransitionEndEvent,
-                      WrapWeakPersistent(this)));
+    event_listener_ = MakeGarbageCollected<
+        MediaControlsSharedHelpers::TransitionEventListener>(
+        this,
+        WTF::BindRepeating(&MediaControlPanelElement::HandleTransitionEndEvent,
+                           WrapWeakPersistent(this)));
   }
 
   // Attach the event listener if we are not attached.