[9] Review request for 8130749: WebView 8u60 Gmail display problems on HiDPI

[Jim Graham]

jira: https://bugs.openjdk.java.net/browse/JDK-8130749
webrev: http://cr.openjdk.java.net/~flar/JDK-8130749/webrev.01/

The issue turned out to be a mismatch between layer bounds being in 
device coordinates and then being used in drawTexture() which has a 
transform from the HiDPI scaling.

Are there other places in the code that may have made the same assumption?

			...jim