RFR: 8238223: Lanai - JPopupMenu/7154841 - no mouse events on the popup menu

[Ajit Ghaisas]

Issue : https://bugs.openjdk.java.net/browse/JDK-8238223
Root Cause : Texture creation size is restricted to screen width and height. This causes artifacts (and may cause other
failures too) in UI. Fix : Support creation of textures larger than screen dimensions.

-------------

Commit messages:
 - Update max texture size constant

Changes: https://git.openjdk.java.net/lanai/pull/14/files
 Webrev: https://webrevs.openjdk.java.net/lanai/14/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8238223
  Stats: 5 lines in 1 file changed: 1 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/lanai/pull/14.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/14/head:pull/14

PR: https://git.openjdk.java.net/lanai/pull/14