[OpenJDK 2D-Dev] RFR: 8044551, 8044396: Fix raw and unchecked lint warnings in platform-specific sun.awt and sun.java2d

[Henry Jen]

Hi,

Please review a follow-up to clean up rawtype and unchecked warnings in 
platform-specific code.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8044396
https://bugs.openjdk.java.net/browse/JDK-8044551

Webrev:
http://cr.openjdk.java.net/~henryjen/jdk9/8044551/0/webrev/

Cheers,
Henry