<AWT Dev> RFR: 8267161 : Write automated test case for JDK-4479161

[lawrence.andrews]

1) Automated the manual test case.
2) Removed html dependent file
3) Removed javax.swing.JApplet dependent. 
4) Test case can be executed independently as well with jtreg framework.
5) Added methods to know that JFrame and Other component is visible before starting the user action via Robot.

@shurymury

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Commit messages:
 - Creating swing components with in EDT
 - 8267161:Write automated test case for JDK-4479161

Changes: https://git.openjdk.java.net/jdk/pull/5058/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5058&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267161
  Stats: 211 lines in 2 files changed: 129 ins; 50 del; 32 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5058.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5058/head:pull/5058

PR: https://git.openjdk.java.net/jdk/pull/5058