RFR: 8287453: RenderPerfTest incorrectly measures performance

[Alexey Ushakov]

Improved RenderPerfTest:
  - removed RenderPerfLCD.java (we have LCD tests in RenderPerfTest.java)
  - corrected and simplified test logic
  - added timeout on low performant rendering
  - used several markers to recover from missing frames
  - protected measurements from multiple paint invocations

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Commit messages:
 - 8287453: RenderPerfTest incorrectly measures performance

Changes: https://git.openjdk.java.net/jdk/pull/8928/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8928&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8287453
  Stats: 478 lines in 4 files changed: 34 ins; 402 del; 42 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8928.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8928/head:pull/8928

PR: https://git.openjdk.java.net/jdk/pull/8928