Tweak the heuristic that handles JPEG images with a wildly incorrect SOF (Start of Frame) scanLines parameter (issue 15492)

[Snuffleupagus]

No description provided.

[Snuffleupagus]

/botio test

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://54.241.84.105:8877/6fc09577dfa9958/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://54.193.163.58:8877/ea609df88d59b51/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Failed

Full output at http://54.241.84.105:8877/6fc09577dfa9958/output.txt

Total script time: 26.67 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

  different ref/snapshot: 7
  different first/second rendering: 1

Image differences available at: http://54.241.84.105:8877/6fc09577dfa9958/reftest-analyzer.html#web=eq.log

[pdfjsbot]

From: Bot.io (Windows)

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Failed

Full output at http://54.193.163.58:8877/ea609df88d59b51/output.txt

Total script time: 29.47 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: FAILED
• Regression tests: FAILED

  different ref/snapshot: 1

Image differences available at: http://54.193.163.58:8877/ea609df88d59b51/reftest-analyzer.html#web=eq.log

[calixteman]

I'm not sure to really understand the fix, but there are no regressions so r=me.

[calixteman]

/botio makeref

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_makeref from @calixteman received. Current queue size: 1

Live output at: http://54.193.163.58:8877/59e19a9609ff42b/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

---

Received

Command cmd_makeref from @calixteman received. Current queue size: 0

Live output at: http://54.241.84.105:8877/75128b933f69f79/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.241.84.105:8877/75128b933f69f79/output.txt

Total script time: 22.62 mins

• Lint: Passed
• Make references: Passed
• Check references: Passed

[pdfjsbot]

From: Bot.io (Windows)

---

Success

Full output at http://54.193.163.58:8877/59e19a9609ff42b/output.txt

Total script time: 23.26 mins

• Lint: Passed
• Make references: Passed
• Check references: Passed