Move PhysicalChunkData to Chunks namespace

src/ImageSharp/Formats/Png/Chunks/PngPhysicalChunkData.cs → src/ImageSharp/Formats/Png/Chunks/PhysicalChunkData.cs

@@ -3,16 +3,16 @@ using System.Buffers.Binary;
 using SixLabors.ImageSharp.Common.Helpers;
 using SixLabors.ImageSharp.MetaData;
 
-namespace SixLabors.ImageSharp.Formats.Png
+namespace SixLabors.ImageSharp.Formats.Png.Chunks
 {
     /// <summary>
     /// The pHYs chunk specifies the intended pixel size or aspect ratio for display of the image.
     /// </summary>
-    internal readonly struct PngPhysicalChunkData
+    internal readonly struct PhysicalChunkData
     {
         public const int Size = 9;
 
-        public PngPhysicalChunkData(uint x, uint y, byte unitSpecifier)
+        public PhysicalChunkData(uint x, uint y, byte unitSpecifier)
         {
             this.XAxisPixelsPerUnit = x;
             this.YAxisPixelsPerUnit = y;
@@ -43,7 +43,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// </summary>
         /// <param name="meta">The metadata.</param>
         /// <returns>The constructed PngPhysicalChunkData instance.</returns>
-        public static PngPhysicalChunkData FromMetadata(ImageMetaData meta)
+        public static PhysicalChunkData FromMetadata(ImageMetaData meta)
         {
             byte unitSpecifier = 0;
             uint x;

src/ImageSharp/Formats/Png/PngEncoderCore.cs

@@ -9,7 +9,6 @@ using System.Linq;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using SixLabors.ImageSharp.Advanced;
-using SixLabors.ImageSharp.Common.Helpers;
 using SixLabors.ImageSharp.Formats.Png.Filters;
 using SixLabors.ImageSharp.Formats.Png.Zlib;
 using SixLabors.ImageSharp.Memory;
@@ -674,9 +673,9 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <param name="meta">The image meta data.</param>
         private void WritePhysicalChunk(Stream stream, ImageMetaData meta)
         {
-            PngPhysicalChunkData.FromMetadata(meta).WriteTo(this.chunkDataBuffer);
+            PhysicalChunkData.FromMetadata(meta).WriteTo(this.chunkDataBuffer);
 
-            this.WriteChunk(stream, PngChunkType.Physical, this.chunkDataBuffer, 0, PngPhysicalChunkData.Size);
+            this.WriteChunk(stream, PngChunkType.Physical, this.chunkDataBuffer, 0, PhysicalChunkData.Size);
         }
 
         /// <summary>