[macOS] Fix typo in render size change check condition

ycherniavskyi · ycherniavskyi · commit f7c250d835d3 · 2020-04-18T17:42:19.000+03:00
Analogically to fix for iOS in pull request flutter-webrtc#215.
diff --git a/macos/Classes/FlutterRTCVideoRenderer.m b/macos/Classes/FlutterRTCVideoRenderer.m
@@ -188,7 +188,7 @@ - (void)renderFrame:(RTCVideoFrame *)frame {
     [self copyI420ToCVPixelBuffer:_pixelBufferRef withFrame:frame];
 
     __weak FlutterRTCVideoRenderer *weakSelf = self;
-    if(_renderSize.width != frame.width || _frameSize.height != frame.height){
+    if(_renderSize.width != frame.width || _renderSize.height != frame.height){
         dispatch_async(dispatch_get_main_queue(), ^{
             FlutterRTCVideoRenderer *strongSelf = weakSelf;
             if(strongSelf.eventSink){
