[jfx11u] Integrated: 8268849: Update to 612.1 version of WebKit

[Kevin Rushforth]

On Tue, 17 Aug 2021 17:33:13 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Nearly clean backport of third-party update to WebKit 612.1. There was one minor conflict in one unit test file due to difference in context.
> 
> As an FYI, I tested this patch in my [test-kcr-11.0.13](https://github.com/kevinrushforth/jfx11u/tree/test-kcr-11.0.13) branch, which has the aggregate set of patches for the following bugs: [JDK-8211308](https://bugs.openjdk.java.net/browse/JDK-8211308), [JDK-8268915](https://bugs.openjdk.java.net/browse/JDK-8268915), [JDK-8269147](https://bugs.openjdk.java.net/browse/JDK-8269147), [JDK-8269131](https://bugs.openjdk.java.net/browse/JDK-8269131), [JDK-8268849](https://bugs.openjdk.java.net/browse/JDK-8268849), [JDK-8270479](https://bugs.openjdk.java.net/browse/JDK-8270479), [JDK-8272329](https://bugs.openjdk.java.net/browse/JDK-8272329).

This pull request has now been integrated.

Changeset: 929b9c2a
Author:    Kevin Rushforth <kcr at openjdk.org>
URL:       https://git.openjdk.java.net/jfx11u/commit/929b9c2a3a3b84c21923be4288d7a7677cde192b
Stats:     286061 lines in 5711 files changed: 175196 ins; 68118 del; 42747 mod

8268849: Update to 612.1 version of WebKit

Reviewed-by: jvos, arapte
Backport-of: 948df32448b71c4d6c10ccc4c125170dc68b0786

-------------

PR: https://git.openjdk.java.net/jfx11u/pull/34