Support subtitles for native fullscreen video

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index 18b7df0c63334f513da113789f680d4fdfcded79..ee60230430393a1e45507b62cef1fa1d50cfadb9 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -310,24 +310,22 @@ void WebMediaPlayerClientImpl::pause()
         m_webMediaPlayer->pause();
 }
 
-#if USE(NATIVE_FULLSCREEN_VIDEO)
-void WebMediaPlayerClientImpl::enterFullscreen()
+void WebMediaPlayerClientImpl::showFullscreenOverlay()
 {
     if (m_webMediaPlayer)
         m_webMediaPlayer->enterFullscreen();
 }
 
-void WebMediaPlayerClientImpl::exitFullscreen()
+void WebMediaPlayerClientImpl::hideFullscreenOverlay()
 {
     if (m_webMediaPlayer)
         m_webMediaPlayer->exitFullscreen();
 }
 
-bool WebMediaPlayerClientImpl::canEnterFullscreen() const
+bool WebMediaPlayerClientImpl::canShowFullscreenOverlay() const
 {
     return m_webMediaPlayer && m_webMediaPlayer->canEnterFullscreen();
 }
-#endif
 
 MediaPlayer::MediaKeyException WebMediaPlayerClientImpl::generateKeyRequest(const String& keySystem, const unsigned char* initData, unsigned initDataLength)
 {