RFR: 8279614: The left line of the TitledBorder is not painted on 150 scale factor [v20]

[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 two additional commits since the last revision:

 - don't reset transform if it contains a non-scale transformation
 - 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/935ec438..1d6ac075

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=19
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7449&range=18-19

  Stats: 278 lines in 3 files changed: 10 ins; 261 del; 7 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