RFR: 8338307 : Additional WebKit 619.1 fixes from WebKitGTK 2.44.3

[Hima Bindu Meda]

Updated additonal fixes from webkit-2.44.3. Verified build on all platforms. No issue seen.

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Commit messages:
 - correct spaces
 - Update changes related to webkit-2.44.3

Changes: https://git.openjdk.org/jfx/pull/1541/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1541&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338307
  Stats: 1276 lines in 181 files changed: 721 ins; 113 del; 442 mod
  Patch: https://git.openjdk.org/jfx/pull/1541.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1541/head:pull/1541

PR: https://git.openjdk.org/jfx/pull/1541