adjust names

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.External.cs → src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.Consumed.cs

@@ -5,11 +5,12 @@ namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
 {
     public abstract partial class UniformMemoryGroup<T>
     {
-        private class External : UniformMemoryGroup<T>
+        // Analogous to the "consumed" variant of MemorySource
+        private class Consumed : UniformMemoryGroup<T>
         {
             private readonly ReadOnlyMemory<Memory<T>> source;
 
-            public External(ReadOnlyMemory<Memory<T>> source)
+            public Consumed(ReadOnlyMemory<Memory<T>> source)
             {
                 // TODO: sizes should be uniform, validate!
 

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.Allocated.cs → src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.Owned.cs

@@ -5,13 +5,14 @@ using System.Linq;
 
 namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
 {
+    // Analogous to the "owned" variant of MemorySource
     public abstract partial class UniformMemoryGroup<T>
     {
-        private class Allocated : UniformMemoryGroup<T>
+        private class Owned : UniformMemoryGroup<T>
         {
             private IMemoryOwner<T>[] memoryOwners;
 
-            public Allocated(IMemoryOwner<T>[] memoryOwners)
+            public Owned(IMemoryOwner<T>[] memoryOwners)
             {
                 this.memoryOwners = memoryOwners;
             }

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.cs

@@ -34,7 +34,13 @@ namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
 
         public static UniformMemoryGroup<T> Wrap(ReadOnlyMemory<Memory<T>> source)
         {
-            return new External(source);
+            return new Consumed(source);
+        }
+
+        // Analogous to current MemorySource.SwapOrCopyContent()
+        public static void SwapOrCopyContent(UniformMemoryGroup<T> destination, UniformMemoryGroup<T> source)
+        {
+            throw new NotImplementedException();
         }
     }
 }