<AWT Dev> [9] Review request for 8035069 [macosx] Loading resolution variants by demand

[Alexander Scherbatiy]

Hello,

Could you review the fix:
   bug: https://bugs.openjdk.java.net/browse/JDK-8035069
   webrev: http://cr.openjdk.java.net/~alexsch/8035069/webrev.00

   Image resolution variants are generated by request and cached in the 
ImageCache.

   - ImageCache is refactored to store different type of images and 
moved to sun.awt.image package.
   - An object is used as the cache key instead of hash code to prevent 
inetsection of hash codes for
     different type of images.
   - The base image for MultiResolutionBufferedImage is not cached and 
used for the hash code calculation
     in the getResolutionVariant method.

Thanks,
Alexandr.