RFR: 8259635: Update to 610.2 version of WebKit [v2]

[Arun Joseph]

> Update JavaFX WebKit to GTK WebKit 2.30 (610.2)

Arun Joseph has updated the pull request incrementally with one additional commit since the last revision:

  Fix color in DefaultPlugin

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Changes:
  - all: https://git.openjdk.java.net/jfx/pull/382/files
  - new: https://git.openjdk.java.net/jfx/pull/382/files/f55e82f8..ccb53c63

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jfx&pr=382&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jfx&pr=382&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jfx/pull/382.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/382/head:pull/382

PR: https://git.openjdk.java.net/jfx/pull/382