Media: Update fullscreen controls for 1360 PPM

https://bugs.webkit.org/show_bug.cgi?id=259845
rdar://112866983

Reviewed by Eric Carlson.

The visionOS media controls are too small when in
fullscreen.

* Source/WebKit/UIProcess/ios/fullscreen/WKFullScreenWindowControllerIOS.mm:
(-[WKFullScreenWindowController enterFullScreen:]):

Canonical link: https://commits.webkit.org/266607@main

Source/WebKit/UIProcess/ios/fullscreen/WKFullScreenWindowControllerIOS.mm

@@ -69,6 +69,11 @@
 using namespace WebKit;
 using namespace WebCore;
 
+static constexpr float ZoomForFullscreenWindow = 1.0;
+#if PLATFORM(VISION)
+static constexpr float ZoomForVisionFullscreenVideoWindow = 1.36;
+#endif
+
 static CGSize sizeExpandedToSize(CGSize initial, CGSize other)
 {
     return CGSizeMake(std::max(initial.width, other.width),  std::max(initial.height, other.height));
@@ -898,10 +903,18 @@ - (void)enterFullScreen:(CGSize)videoDimensions
             manager->setAnimatingFullScreen(true);
 
         WebCore::ViewportArguments arguments { WebCore::ViewportArguments::CSSDeviceAdaptation };
-        arguments.zoom = 1;
-        arguments.minZoom = 1;
-        arguments.maxZoom = 1;
-        arguments.userZoom = 1;
+        arguments.zoom = WebKit::ZoomForFullscreenWindow;
+        arguments.minZoom = WebKit::ZoomForFullscreenWindow;
+        arguments.maxZoom = WebKit::ZoomForFullscreenWindow;
+        arguments.userZoom = WebKit::ZoomForFullscreenWindow;
+#if PLATFORM(VISION)
+        if (manager->isVideoElement()) {
+            arguments.zoom = WebKit::ZoomForVisionFullscreenVideoWindow;
+            arguments.minZoom = WebKit::ZoomForVisionFullscreenVideoWindow;
+            arguments.maxZoom = WebKit::ZoomForVisionFullscreenVideoWindow;
+            arguments.userZoom = WebKit::ZoomForVisionFullscreenVideoWindow;
+        }
+#endif
         page->setOverrideViewportArguments(arguments);
 
         page->forceRepaint([protectedSelf = retainPtr(self), self, logIdentifier = logIdentifier] {