<AWT Dev> RFR: 7110890: reg test TranslucentShapedFrameTest fails to create non-opaque frame

[Sergey Bylokhov]

This manual test was created during the development phase of jdk7 when it was possible to create translucent/non-opaque
decorated frames. That was changed by the https://bugs.openjdk.java.net/browse/JDK-6993784

The test allows creating and changing on the fly: translucent/shaped/transparent frames all such windows should be
undecorated.

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Commit messages:
 - Initial fix

Changes: https://git.openjdk.java.net/jdk/pull/753/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=753&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-7110890
  Stats: 58 lines in 2 files changed: 13 ins; 39 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/753.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/753/head:pull/753

PR: https://git.openjdk.java.net/jdk/pull/753