RFR: 8279614: The left line of the TitledBorder is not painted on 150 scale factor [v18]

[Alisen Chung]

> Changed the drawing area to be increased by 0.5 on the left side to prevent clipping

Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:

  updated test

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7449/files
  - new: https://git.openjdk.java.net/jdk/pull/7449/files/65200a23..61fc0ae9

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=17
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=16-17

  Stats: 241 lines in 1 file changed: 241 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7449.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7449/head:pull/7449

PR: https://git.openjdk.java.net/jdk/pull/7449