Remove WebMediaPlayerClient::requestFullscreen()

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
diff --git a/Source/core/html/HTMLMediaElement.cpp b/Source/core/html/HTMLMediaElement.cpp
index cd923f88f9b15d41f46c896e8ea91f027ced0304..e1c3961c68b756d4b96bf7d23f996e93d3a0049f 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -2778,17 +2778,6 @@ void HTMLMediaElement::mediaPlayerPlaybackStateChanged()
         playInternal();
 }
 
-void HTMLMediaElement::mediaPlayerRequestFullscreen()
-{
-    WTF_LOG(Media, "HTMLMediaElement::mediaPlayerRequestFullscreen(%p)", this);
-
-    // The player is responsible for only invoking this callback in response to
-    // user interaction or when it is technically required to play the video.
-    UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
-
-    enterFullscreen();
-}
-
 void HTMLMediaElement::mediaPlayerRequestSeek(double time)
 {
     // The player is the source of this seek request.