From 9fc7842eefcce5ad24300f27eb76f4eff7efa4b4 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Mon, 20 Jan 2020 11:52:33 -0300
Subject: [PATCH] Revert "X11 backend wont crash with 0 sized window."

This reverts commit d49109877c887416f146a09d9c83d0bbae3e4abe.
---
 .../PlatformSupport/StandardRuntimePlatform.cs     | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/Shared/PlatformSupport/StandardRuntimePlatform.cs b/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
index 499f263a9a..8a5a725594 100644
--- a/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
+++ b/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
@@ -52,13 +52,11 @@ namespace Avalonia.Shared.PlatformSupport
             
             public UnmanagedBlob(StandardRuntimePlatform plat, int size)
             {
-                if (size > 0)
-                {
-                    _plat = plat;
-                    _address = plat.Alloc(size);
-                    GC.AddMemoryPressure(size);
-                }
-
+                if (size <= 0)
+                    throw new ArgumentException("Positive number required", nameof(size));
+                _plat = plat;
+                _address = plat.Alloc(size);
+                GC.AddMemoryPressure(size);
                 Size = size;
 #if DEBUG
                 _backtrace = Environment.StackTrace;
@@ -77,7 +75,7 @@ namespace Avalonia.Shared.PlatformSupport
                         lock (_btlock)
                             Backtraces.Remove(_backtrace);
 #endif
-                        _plat?.Free(_address, Size);
+                        _plat.Free(_address, Size);
                         GC.RemoveMemoryPressure(Size);
                         IsDisposed = true;
                         _address = IntPtr.Zero;