Unable to create sync chain due to leading and trailing whitespace in code words

[btlechowski]

Steps to Reproduce

1. Clean install DeviceA and DeviceB
2. On DeviceA open brave://settings/braveSync/setup
3. On DeviceA click Start a new sync chain
4. On DeviceA click Computer
5. On DeviceA copy the code words
6. Add leading and trailing white space to the code words
7. On DeviceB use the code words
8. Wait for the sync chain creation

Actual result:

Invalid Code Words error is shown

Expected result:

Leading and trailing whitespace in code words are trimmed
Sync chain is created

Reproduces how often:

100% repro rate

Brave version (brave://version info)

Brave	1.12.94 Chromium: 84.0.4147.89 (Official Build) dev (64-bit)
Revision	19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS	Ubuntu 18.04 LTS

Brave	1.13.36 Chromium: 84.0.4147.89 (Official Build) nightly (64-bit)
Revision	19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS	Ubuntu 18.04 LTS

cc @brave/legacy_qa @jsecretan @rebron @darkdh @AlexeyBarabash @yrliou @petemill

[AlexeyBarabash]

I can reproduce.

[GeetaSarvadnya]

Verification passed on

Brave | 1.20.84 Chromium: 88.0.4324.96 (Official Build) dev (64-bit)
-- | --
Revision | 68dba2d8a0b149a1d3afac56fa74648032bcf46b-refs/branch-heads/4324@{#1784}
OS | Windows 10 OS Version 2004 (Build 19041.746)

• Issue is still reproducible in 1.20.x, logged a follow-up issue as per the QA process Follow up of #10860 - Unable to create sync chain due to leading and trailing whitespace in code words  #13681

---

Verification passed on

Brave	1.20.86 Chromium: 88.0.4324.96 (Official Build) dev (64-bit)
Revision	68dba2d8a0b149a1d3afac56fa74648032bcf46b-refs/branch-heads/4324@{#1784}
OS	Ubuntu 18.04 LTS

Brave	1.20.85 Chromium: 88.0.4324.96 (Official Build) beta (64-bit)
Revision	68dba2d8a0b149a1d3afac56fa74648032bcf46b-refs/branch-heads/4324@{#1784}
OS	Linux

Verified test plan from the description. Created sync between 1.20.86(dev) and 1.20.85(beta). Added spaces and enters to the code words.

Verified test plan from the description; DeviceA was my Windows 10 Dev build, with DeviceB being this macOS build, below. Added leading space and trailing space characters, then chained and successfully synced between devices.

Brave	1.20.90 Chromium: 88.0.4324.96 (Official Build) dev (x86_64)
Revision	68dba2d8a0b149a1d3afac56fa74648032bcf46b-refs/branch-heads/4324@{#1784}
OS	macOS Version 11.1 (Build 20C69)