[Playlist] - Sometimes adding media embedded in an iFrame won't work.

[Brandon-T]

Description:

Sometimes adding media through gesture recognizer won't work when embedded in an iFrame.

Steps to Reproduce

1. Go to: https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_video
2. Change: <video width="400" controls> to <video width="400" controls playsinline>
3. Hit "Run" button.
4. Long-Press on the video to add it to playlist.

Actual result:

• Video won't be added to playlist.
• Popup won't show "Add to Brave Playlist".

Expected result:

• Should show popup to "Add to Brave Playlist".

Reproduces how often: [Easily reproduced, Intermittent Issue]
Easily reproduced

Brave Version:
1.27

Device details:
Any

Website problems only:
N/A

Additional Information

Only happens for videos where the content offset of the frame itself is > 0 in either direction relative to the current page.

[srirambv]

Verification passed on iPhone XR with iOS 13.5 running 1.29(21.07.20.16)

• Verified steps from issue description
• Verified able to add videos to playlist

iPhone.XR.iframe.Playlist.MP4

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Verification passed on iPhone 7+ with iOS 14.5.1 running 1.29(21.07.20.16)

• Verified steps from issue description
• Verified able to add videos to playlist

iPhone.7+.iframe.Playlist.MP4

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Verification passed on iPad Pro with iOS 14.6 running 1.29(21.07.20.16)

• Verified steps from issue description
• Verified able to add videos to playlist

iPad.Pro.iframe.Playlist.MP4