[Sync] Disable expiring of devices

[AlexeyBarabash]

It is required to disable Chromium's feature of expiring old (>56 days) devices in the sync chain. For the existing browser profiles the devices should be re-fetched from the server.

We need this because now the number of devices is limited to 50 per the sync chain and some users have an error of max num devices in chain, but in their list there are less than 50.

[stephendonner]

While not actively blocked, setting QA-Blocked while I work on refining the testplan 👍

[stephendonner]

Verified PASSED using

Brave	1.37.89 Chromium: 99.0.4844.51 (Official Build) beta (64-bit)
Revision	d537ec02474b5afe23684e7963d538896c63ac77-refs/branch-heads/4844@{#875}
OS	Windows 10 Version 21H2 (Build 19044.1586)

Steps:

1. launched desktop using --sync-url=https://sync-v2.brave.software/v2
2. joined the provided test Sync chain using code words
3. confirmed I saw the HAPPYUBU7 devices
4. launched Android using --sync-url=https://sync-v2.brave.software/v2
5. joined the Sync chain by scanning the QR code on desktop, from Android

confirmed I saw the HAPPYUBU7 devices

confirmed my Android, Windows, and [iOS-pending] devices could all see each other in the chain

Win10	macOS	Android	iOS?
			[iOS?]

NOTE: Will return to verify with iOS, when a 1.37.x build is available.

---

Verified PASSED using

Brave	1.37.91 Chromium: 99.0.4844.51 (Official Build) beta (x86_64)
Revision	d537ec02474b5afe23684e7963d538896c63ac77-refs/branch-heads/4844@{#875}
OS	macOS Version 12.3 (Build 21E230)

Steps:

1. launched desktop using --sync-url=https://sync-v2.brave.software/v2
2. joined the provided test Sync chain using code words
3. confirmed I saw the HAPPYUBU7 devices
4. launched Android using --sync-url=https://sync-v2.brave.software/v2
5. joined the Sync chain by scanning the QR code on desktop, from Android

confirmed I saw the HAPPYUBU7 devices

confirmed my Android, Windows, and [iOS-pending] devices could all see each other in the chain

Win10	macOS	Android	iOS?
			[iOS?]

NOTE: Will return to verify with iOS, when available.

---

Verification passed on

Brave	1.37.95 Chromium: 99.0.4844.74 (Oficjalna wersja) beta (64-bitowa)
Revision	fee9a47e86e981802390cb0d41c5ed7ea93c4f6f-refs/branch-heads/4844@{#1060}
OS	Ubuntu 18.04 LTS

[Uni-verse]

Verification PASSED on Android ARM using version Beta 1.37.94, Chromium 99.0.4844.74

Device: Samsung Galaxy S21 running Android 12

• Verified able to connect to the staging sync chain using STR from slack thread:
• Verified older devices are still show up on sync chain
• Scanned QR Code from desktop sync chain

1. Disconnect network
2. Install Browser via APK
3. Enable dev tools and add the command line string --sync-url=https://sync-v2.brave.software/v2
4. Quit browser after relaunch
5. Connect back to network and relaunch browser, should start using staging URL for Sync
6. Navigate to settings > sync and scan sync QR code

[Uni-verse]

Verification PASSED on Android Tab using version Beta 1.37.94, Chromium 99.0.4844.74

Device: Samsung Galaxy Tab S7 running Android 11

• Verified able to connect to the staging sync chain using STR from slack thread:
• Verified older devices are still show up on sync chain
• Scanned QR Code from desktop sync chain

1. Disconnect network
2. Install Browser via APK
3. Enable dev tools and add the command line string --sync-url=https://sync-v2.brave.software/v2
4. Quit browser after relaunch
5. Connect back to network and relaunch browser, should start using staging URL for Sync
6. Navigate to settings > sync and scan sync QR code