RFR: 8279614: The left line of the TitledBorder is not painted on 150 scale factor [v2]

[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 three additional commits since the last revision:

 - adjusted pixels to check for border
 - typo
 - reverted old change, swapped order of painting to prevent overdrawing

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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/c0b31892..6056faf8

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=00-01

  Stats: 64 lines in 3 files changed: 48 ins; 1 del; 15 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