hg: jdk/client: 6788458: PNGImageReader ignores tRNS chunk while reading non-indexed RGB/Gray images

[jayathirth.d.v at oracle.com]

Changeset: 6f595ec05539
Author:    jdv
Date:      2018-04-18 12:33 +0530
URL:       http://hg.openjdk.java.net/jdk/client/rev/6f595ec05539

6788458: PNGImageReader ignores tRNS chunk while reading non-indexed RGB/Gray images
Reviewed-by: prr, pnarayanan, kaddepalli

! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGImageReader.java
! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGMetadata.java
+ test/jdk/javax/imageio/plugins/png/ReadPngGrayImageWithTRNSChunk.java
+ test/jdk/javax/imageio/plugins/png/ReadPngRGBImageWithTRNSChunk.java