Turned off wide gamut color pixel format for the simulator since it (#39825)

Turned off wide gamut color pixel format for the simulator

Author: gaaclarke

shell/platform/darwin/ios/framework/Source/FlutterView.mm

@@ -17,10 +17,16 @@
 #include "third_party/skia/include/utils/mac/SkCGUtils.h"
 
 static BOOL IsWideGamutSupported() {
+#if TARGET_OS_SIMULATOR
+  // As of Xcode 14.1, the wide gamut surface pixel formats are not supported by
+  // the simulator.
+  return NO;
+#else
   // This predicates the decision on the capabilities of the iOS device's
   // display.  This means external displays will not support wide gamut if the
   // device's display doesn't support it.  It practice that should be never.
   return UIScreen.mainScreen.traitCollection.displayGamut != UIDisplayGamutSRGB;
+#endif
 }
 
 @implementation FlutterView {
@@ -57,6 +63,10 @@ - (instancetype)initWithDelegate:(id<FlutterViewEngineDelegate>)delegate
   if (self) {
     _delegate = delegate;
     _isWideGamutEnabled = isWideGamutEnabled;
+    if (_isWideGamutEnabled && !IsWideGamutSupported()) {
+      FML_DLOG(WARNING) << "Rendering wide gamut colors is turned on but isn't "
+                           "supported, downgrading the color gamut to sRGB.";
+    }
     self.layer.opaque = opaque;
 
     // This line is necessary. CoreAnimation(or UIKit) may take this to do