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

third_party/WebKit/Source/modules/media_controls/BUILD.gn

Index: third_party/WebKit/Source/modules/media_controls/BUILD.gn
diff --git a/third_party/WebKit/Source/modules/media_controls/BUILD.gn b/third_party/WebKit/Source/modules/media_controls/BUILD.gn
index c4c010883633ccd1c7c879f048b493a4b8f72799..fdfc1e230341a775a41326ada708385a4d8a5459 100644
--- a/third_party/WebKit/Source/modules/media_controls/BUILD.gn
+++ b/third_party/WebKit/Source/modules/media_controls/BUILD.gn
@@ -16,13 +16,21 @@ blink_modules_sources("media_controls") {
     "MediaControlsWindowEventListener.h",
     "elements/MediaControlCurrentTimeDisplayElement.cpp",
     "elements/MediaControlCurrentTimeDisplayElement.h",
+    "elements/MediaControlElementsHelper.cpp",
+    "elements/MediaControlElementsHelper.h",
     "elements/MediaControlMuteButtonElement.cpp",
     "elements/MediaControlMuteButtonElement.h",
+    "elements/MediaControlOverflowMenuListElement.cpp",
+    "elements/MediaControlOverflowMenuListElement.h",
     "elements/MediaControlOverlayEnclosureElement.cpp",
     "elements/MediaControlOverlayEnclosureElement.h",
+    "elements/MediaControlPanelElement.cpp",
+    "elements/MediaControlPanelElement.h",
     "elements/MediaControlPanelEnclosureElement.cpp",
     "elements/MediaControlPanelEnclosureElement.h",
     "elements/MediaControlRemainingTimeDisplayElement.cpp",
     "elements/MediaControlRemainingTimeDisplayElement.h",
+    "elements/MediaControlTextTrackListElement.cpp",
+    "elements/MediaControlTextTrackListElement.h",
   ]
 }