Uno: fix build

Author: mfkl

src/LibVLCSharp/Platforms/Windows/VideoView.cs

@@ -3,7 +3,7 @@
     /// <summary>
     /// VideoView implementation for the UWP platform
     /// </summary>
-    public class VideoView : VideoView<InitializedEventArgs>
+    public partial class VideoView : VideoView<InitializedEventArgs>
     {
         /// <summary>
         /// Creates args for <see cref="VideoView{TInitializedEventArgs}.Initialized"/> event

src/LibVLCSharp/Platforms/Windows/VideoViewBase.cs

@@ -23,7 +23,7 @@ namespace LibVLCSharp.Platforms.Windows
     /// VideoView base class for the UWP platform
     /// </summary>
     [TemplatePart(Name = PartSwapChainPanelName, Type = typeof(SwapChainPanel))]
-    public abstract class VideoViewBase : Control, IVideoView
+    public abstract partial class VideoViewBase : Control, IVideoView
     {
         private const string PartSwapChainPanelName = "SwapChainPanel";
 

src/LibVLCSharp/Platforms/Windows/VideoViewOfTInitializedEventArgs.cs

@@ -5,7 +5,7 @@ namespace LibVLCSharp.Platforms.Windows
     /// <summary>
     /// VideoView base class for the UWP platform with <see cref="Initialized"/> event
     /// </summary>
-    public abstract class VideoView<TInitializedEventArgs> : VideoViewBase where TInitializedEventArgs : EventArgs
+    public abstract partial class VideoView<TInitializedEventArgs> : VideoViewBase where TInitializedEventArgs : EventArgs
     {
         /// <summary>
         /// Occurs when the <see cref="VideoView"/> is fully loaded and the <see cref="VideoViewBase.SwapChainOptions"/> property is set