Brave Core/Chromium framework causing increased storage usage

[kylehickinson]

Users are reporting seeing increased storage usage (in the GB's) starting in 1.21

• Sync is not required to be enabled
• Solution should clear out all files causing space increase

[bsclifton]

Fixed in brave-core 1.20 via brave/brave-core#7349

Uplifts open:

• 1.16 iOS Sync Uplift fixes + Fix for BrowserMetrics space usage brave-core#7355
• 1.18 part of iOS Sync 1.18.x Uplift brave-core#7371
• 1.19 part of iOS Sync Uplift 1.19.x brave-core#7431

[kjozwiak]

Verification PASSED on iPhone 11 running iOS 14.2 using 1.22.1 (20.12.10.22)

Scenario 1 - Clean Install

• downloaded 1.22.1 (20.12.10.22) from TF (Dev) and opened/closed Brave several times
• ensured that Documents & Data wasn't being incrementally increased on every restart
• opened Brave ~30 times and ensured it stayed ~135-140MB

Scenario 2 - Upgrade

• downloaded 1.22 (20.12.2.1) from TF (Dev) and opened/closed Brave several times
• noticed that Documents & Data incrementally increased in size every single time
• increased Brave size to ~1.02 GB
• updated to 1.22.1 (20.12.10.22) and ensured that the size of Brave decreased

In this case, it went from 1.02GB --> ~137MB

1.22 (20.12.2.1)	1.22.1 (20.12.10.22)

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Verification PASSED on iPad Mini 4 running iOS 13.7 using 1.22.1 (20.12.10.22)

Scenario 1 - Clean Install

• downloaded 1.22.1 (20.12.10.22) from TF (Dev) and opened/closed Brave several times
• ensured that Documents & Data wasn't being incrementally increased on every restart
• opened Brave ~30 times and ensured it stayed ~135-140MB

Scenario 2 - Upgrade

• downloaded 1.22 (20.12.2.1) from TF (Dev) and opened/closed Brave several times
• noticed that Documents & Data incrementally increased in size every single time
• increased Brave size to ~1.03 GB
• updated to 1.22.1 (20.12.10.22) and ensured that the size of Brave decreased

In this case, it went from 1.03GB --> ~143MB

1.22 (20.12.2.1)	1.22.1 (20.12.10.22)

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Verification PASSED on iPhone 6s+ running iOS 12.4.1 using 1.22.1 (20.12.10.22)

Scenario 1 - Clean Install

• downloaded 1.22.1 (20.12.10.22) from TF (Dev) and opened/closed Brave several times
• ensured that Documents & Data wasn't being incrementally increased on every restart
• opened Brave ~30 times and ensured it stayed ~135-140MB

Scenario 2 - Upgrade

• downloaded 1.22 (20.12.2.1) from TF (Dev) and opened/closed Brave several times
• noticed that Documents & Data incrementally increased in size every single time
• increased Brave size to ~1.1 GB
• updated to 1.22.1 (20.12.10.22) and ensured that the size of Brave decreased

In this case, it went from 1.1GB --> ~181MB

1.22 (20.12.2.1)	1.22.1 (20.12.10.22)

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Verification PASSED on iPad Air (3rd Gen) running iOS 14.2 using 1.22.1 (20.12.10.22)

Scenario 1 - Clean Install

• downloaded 1.22.1 (20.12.10.22) from TF (Dev) and opened/closed Brave several times
• ensured that Documents & Data wasn't being incrementally increased on every restart
• opened Brave ~30 times and ensured it stayed ~135-150MB

Scenario 2 - Upgrade

• downloaded 1.22 (20.12.2.1) from TF (Dev) and opened/closed Brave several times
• noticed that Documents & Data incrementally increased in size every single time
• increased Brave size to ~1.02 GB
• updated to 1.22.1 (20.12.10.22) and ensured that the size of Brave decreased

In this case, it went from 1.02GB --> ~146MB

1.22 (20.12.2.1)	1.22.1 (20.12.10.22)

[kjozwiak]

@LaurenWags mind going through this one more time to see if it's working for you? Wouldn't mind another set of eyes just in case as you mentioned you ran into a few issues when initially running through the above.

[LaurenWags]

Verification PASSED on iPad Mini 4 running iOS 13.4.1 using 1.22.1 (20.12.10.23)

Scenario 1 - Clean Install

• downloaded 1.22.1 (20.12.10.23) from TF (Prod) and opened/closed Brave several times
• ensured that Documents & Data wasn't being incrementally increased on every restart
• opened Brave ~30 times and ensured it stayed ~135-140MB

Scenario 2 - Upgrade

• downloaded 1.22 from App Store and opened/closed Brave several times
• noticed that Documents & Data incrementally increased in size every single time
• increased Brave size to ~1.04 GB
• updated to 1.22.1 (20.12.10.23) and ensured that the size of Brave decreased. Note, this took a bit of time in my testing (~40 min) but it did decrease.

In this case, it went from 1.04GB --> ~143MB

1.22	1.22.1 (20.12.10.23)