Media Controls: move all MediaControlDivElement sub-classes to modules/.

third_party/WebKit/Source/modules/media_controls/elements/MediaControlElementsHelper.cpp

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "modules/media_controls/elements/MediaControlElementsHelper.h"
+
+#include "core/events/Event.h"
+
+namespace blink {
+
+// static
+bool MediaControlElementsHelper::IsUserInteractionEvent(Event* event) {
+  const AtomicString& type = event->type();
+  return type == EventTypeNames::mousedown || type == EventTypeNames::mouseup ||
+         type == EventTypeNames::click || type == EventTypeNames::dblclick ||
+         event->IsKeyboardEvent() || event->IsTouchEvent();
+}
+
+}  // namespace blink