Update max-width handling for images.

Update background with zero size warning: it is not an error.

DEVSIX-1195

Autoported commit.
Original commit hash: [36b7b2ab1]

Author: pavel-alay

itext/itext.layout/itext/layout/renderer/AbstractRenderer.cs

@@ -462,7 +462,7 @@ public virtual void DrawBackground(DrawContext drawContext) {
                 Rectangle backgroundArea = ApplyMargins(bBox, false);
                 if (backgroundArea.GetWidth() <= 0 || backgroundArea.GetHeight() <= 0) {
                     ILogger logger = LoggerFactory.GetLogger(typeof(iText.Layout.Renderer.AbstractRenderer));
-                    logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.RECTANGLE_HAS_NEGATIVE_OR_ZERO_SIZES, "background"
+                    logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.RECTANGLE_HAS_NEGATIVE_OR_ZERO_SIZES, "background"
                         ));
                     return;
                 }
@@ -486,7 +486,7 @@ public virtual void DrawBackground(DrawContext drawContext) {
                         GetImage().GetHeight(), backgroundImage.GetImage().GetWidth(), backgroundImage.GetImage().GetHeight());
                     if (imageRectangle.GetWidth() <= 0 || imageRectangle.GetHeight() <= 0) {
                         ILogger logger = LoggerFactory.GetLogger(typeof(iText.Layout.Renderer.AbstractRenderer));
-                        logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.RECTANGLE_HAS_NEGATIVE_OR_ZERO_SIZES, "background-image"
+                        logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.RECTANGLE_HAS_NEGATIVE_OR_ZERO_SIZES, "background-image"
                             ));
                         return;
                     }

itext/itext.layout/itext/layout/renderer/ImageRenderer.cs

@@ -99,7 +99,7 @@ public ImageRenderer(Image image)
         public override LayoutResult Layout(LayoutContext layoutContext) {
             LayoutArea area = layoutContext.GetArea().Clone();
             Rectangle layoutBox = area.GetBBox().Clone();
-            float? retrievedWidth = RetrieveWidth(layoutBox.GetWidth());
+            float? retrievedWidth = HasProperty(Property.WIDTH) ? RetrieveWidth(layoutBox.GetWidth()) : null;
             IList<Rectangle> floatRendererAreas = layoutContext.GetFloatRendererAreas();
             float clearHeightCorrection = FloatingHelper.CalculateClearHeightCorrection(this, floatRendererAreas, layoutBox
                 );

port-hash

@@ -1 +1 @@
-6050baf43726dc4ce3100fd436758dce7eaa63e2
+36b7b2ab1debbcf4abb399de672d2ee2c03eea4d