RFR: 7131166: SynthListUI / SynthInternalFrameTitlePane updateStyle() ignores method argument

[Prasanta Sadhukhan]

It seems Synth has two cases of updateStyle() where its argument is not passed to the getContext() call. It seems to be an oversight as in other Synth classes, the component argument passed to updateStyle is being passed to getContext().

CI tests are ok with this change and there is no new regeression with CI tests run in NimbusL&F by default..

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Commit messages:
 - 7131166: SynthListUI / SynthInternalFrameTitlePane updateStyle() ignores method argument

Changes: https://git.openjdk.org/jdk/pull/11875/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11875&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-7131166
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/11875.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11875/head:pull/11875

PR: https://git.openjdk.org/jdk/pull/11875