Implement media cast buttons

Source/core/html/shadow/MediaControlElements.cpp

Index: Source/core/html/shadow/MediaControlElements.cpp
diff --git a/Source/core/html/shadow/MediaControlElements.cpp b/Source/core/html/shadow/MediaControlElements.cpp
index ce1a5e1e5d02e0ab31af09a13e70e4901e044b12..36e83d44f6f78a892e2b287c0952df1faa999bb4 100644
--- a/Source/core/html/shadow/MediaControlElements.cpp
+++ b/Source/core/html/shadow/MediaControlElements.cpp
@@ -483,7 +483,7 @@ PassRefPtrWillBeRawPtr<MediaControlFullscreenButtonElement> MediaControlFullscre
     RefPtrWillBeRawPtr<MediaControlFullscreenButtonElement> button = adoptRefWillBeRefCountedGarbageCollected(new MediaControlFullscreenButtonElement(mediaControls));
     button->ensureUserAgentShadowRoot();
     button->setType("button");
-    button->hide();
+//    button->hide();
     return button.release();
 }
 
@@ -512,6 +512,44 @@ void MediaControlFullscreenButtonElement::setIsFullscreen(bool isFullscreen)
 
 // ----------------------------
 
+MediaControlCastOffButtonElement::MediaControlCastOffButtonElement(MediaControls& mediaControls)
+    : MediaControlInputElement(mediaControls, MediaCastOffButton)
+{
+}
+
+PassRefPtrWillBeRawPtr<MediaControlCastOffButtonElement> MediaControlCastOffButtonElement::create(MediaControls& mediaControls)
+{
+    RefPtrWillBeRawPtr<MediaControlCastOffButtonElement> button = adoptRefWillBeRefCountedGarbageCollected(new MediaControlCastOffButtonElement(mediaControls));
+    button->ensureUserAgentShadowRoot();
+    button->setType("button");
+    return button.release();
+}
+
+void MediaControlCastOffButtonElement::defaultEventHandler(Event* event)
+{
+    if (event->type() == EventTypeNames::click) {
+//        if (FullscreenElementStack::isActiveFullScreenElement(&mediaElement()))
+//            FullscreenElementStack::from(document()).webkitCancelFullScreen();
+//        else
+//            FullscreenElementStack::from(document()).requestFullScreenForElement(&mediaElement(), 0, FullscreenElementStack::ExemptIFrameAllowFullScreenRequirement);
+//        event->setDefaultHandled();
+    }
+    HTMLInputElement::defaultEventHandler(event);
+}
+
+const AtomicString& MediaControlCastOffButtonElement::shadowPseudoId() const
+{
+    DEFINE_STATIC_LOCAL(AtomicString, id, ("-webkit-media-controls-cast-off-button", AtomicString::ConstructFromLiteral));
+    return id;
+}
+
+void MediaControlCastOffButtonElement::setIsCasting(bool isCasting)
+{
+    setDisplayType(isCasting ? MediaCastOnButton : MediaCastOffButton);
+}
+
+// ----------------------------
+
 MediaControlTimeRemainingDisplayElement::MediaControlTimeRemainingDisplayElement(MediaControls& mediaControls)
     : MediaControlTimeDisplayElement(mediaControls, MediaTimeRemainingDisplay)
 {