8252381: Cherry pick GTK WebKit 2.28.4 changes

[arun-joseph]

Update to GTK WebKit 2.28.4
https://webkitgtk.org/2020/07/28/webkitgtk2.28.4-released.html

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8252381: Cherry pick GTK WebKit 2.28.4 changes

Reviewers

• Kevin Rushforth (kcr - Reviewer)
• Bhawesh Choudhary (bchoudhary - Author)

Download

$ git fetch https://git.openjdk.java.net/jfx pull/289/head:pull/289
$ git checkout pull/289

[bridgekeeper]

👋 Welcome back ajoseph! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request.

[mlbridge]

Webrevs

• 00: Full (682f7e9)

[kevinrushforth]

/reviewers 2

[openjdk]

@kevinrushforth
The number of required reviews for this PR is now set to 2 (with at least 1 of role reviewers).

[kevinrushforth]

Looks good. Also, I tested on all three platforms.

[bhaweshkc]

Verified with all three platform. Looks good.

[openjdk]

@arun-joseph This change now passes all automated pre-integration checks. When the change also fulfills all project specific requirements, type /integrate in a new comment to proceed. After integration, the commit message will be:

8252381: Cherry pick GTK WebKit 2.28.4 changes

Reviewed-by: kcr, bchoudhary

• If you would like to add a summary, use the /summary command.
• To credit additional contributors, use the /contributor command.
• To add additional solved issues, use the /issue command.

Since the source branch of this PR was last updated there have been 5 commits pushed to the master branch:

• c86bd35: 8251941: ListCell: visual artifact when items contain null values
• 23ad8f4: 8251353: Many javafx scenegraph classes have implicit no-arg constructors
• 7a4bd9b: 8252060: gstreamer fails to build with gcc 10
• ddf8814: 8251555: Remove unused focusedWindow field in glass Window to avoid leak
• c3fb321: 8252107: Media pipeline initialization can crash if audio or video bin state change fails

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate c86bd35345da980c5bfacd5b0a6b5a283fe4be3a.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[arun-joseph]

/integrate

[openjdk]

@arun-joseph The following commits have been pushed to master since your change was applied:

• c86bd35: 8251941: ListCell: visual artifact when items contain null values
• 23ad8f4: 8251353: Many javafx scenegraph classes have implicit no-arg constructors
• 7a4bd9b: 8252060: gstreamer fails to build with gcc 10
• ddf8814: 8251555: Remove unused focusedWindow field in glass Window to avoid leak
• c3fb321: 8252107: Media pipeline initialization can crash if audio or video bin state change fails

Your commit was automatically rebased without conflicts.

Pushed as commit 88c0f97.