Merge WinFormsWin32Platform in Win32Platform.

src/Windows/Avalonia.Win32/Win32Platform.cs

@@ -16,6 +16,7 @@ using Avalonia.Win32.Interop;
 using Avalonia.Controls;
 using Avalonia.Rendering;
 using Avalonia.Threading;
+using System.IO;
 #if NETSTANDARD
 using Win32Exception = Avalonia.Win32.NetStandard.AvaloniaWin32Exception;
 #else
@@ -40,7 +41,7 @@ namespace Avalonia
 
 namespace Avalonia.Win32
 {
-    partial class Win32Platform : IPlatformThreadingInterface, IPlatformSettings, IWindowingPlatform, IPlatformIconLoader
+    class Win32Platform : IPlatformThreadingInterface, IPlatformSettings, IWindowingPlatform, IPlatformIconLoader
     {
         private static readonly Win32Platform s_instance = new Win32Platform();
         private static uint _uiThread;
@@ -205,5 +206,40 @@ namespace Avalonia.Win32
         {
             return new PopupImpl();
         }
+
+        public IWindowIconImpl LoadIcon(string fileName)
+        {
+            using (var stream = File.OpenRead(fileName))
+            {
+                return CreateIconImpl(stream);
+            }
+        }
+
+        public IWindowIconImpl LoadIcon(Stream stream)
+        {
+            return CreateIconImpl(stream);
+        }
+
+        public IWindowIconImpl LoadIcon(IBitmapImpl bitmap)
+        {
+            using (var memoryStream = new MemoryStream())
+            {
+                bitmap.Save(memoryStream);
+                return new IconImpl(new System.Drawing.Bitmap(memoryStream));
+            }
+        }
+
+        private static IconImpl CreateIconImpl(Stream stream)
+        {
+            try
+            {
+                return new IconImpl(new System.Drawing.Icon(stream));
+            }
+            catch (ArgumentException)
+            {
+                return new IconImpl(new System.Drawing.Bitmap(stream));
+            }
+        }
+
     }
 }

src/Windows/Avalonia.Win32/WinFormsWin32Platform.cs

@@ -1,47 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Avalonia.Platform;
-
-namespace Avalonia.Win32
-{
-    partial class Win32Platform
-    {
-        public IWindowIconImpl LoadIcon(string fileName)
-        {
-            using (var stream = File.OpenRead(fileName))
-            {
-                return CreateImpl(stream);
-            }
-        }
-
-        public IWindowIconImpl LoadIcon(Stream stream)
-        {
-            return CreateImpl(stream);
-        }
-
-        public IWindowIconImpl LoadIcon(IBitmapImpl bitmap)
-        {
-            using (var memoryStream = new MemoryStream())
-            {
-                bitmap.Save(memoryStream);
-                return new IconImpl(new System.Drawing.Bitmap(memoryStream));
-            }
-        }
-
-        private static IconImpl CreateImpl(Stream stream)
-        {
-            try
-            {
-                return new IconImpl(new System.Drawing.Icon(stream));
-            }
-            catch (ArgumentException)
-            {
-                return new IconImpl(new System.Drawing.Bitmap(stream));
-            }
-        }
-    }
-}