Onion pages are opened in Normal Windows

[btlechowski]

After clicking Open in Tor, the onion page is opened in Normal Window

Steps to Reproduce

Steps:

1. Clean install
2. Open Tor window and wait for initialization
3. In normal Window open brave.com
4. Click Open in Tor

Actual result:

The onion page is opened in normal window

Expected result:

The onion page is opened in tor window

Reproduces how often:

100% repro rate

Brave version (brave://version info)

Brave	1.22.26 Chromium: 89.0.4389.48 (Official Build) nightly (64-bit)
Revision	0fe3c4589a6cf5ce719d167834dfa9cd8978937a-refs/branch-heads/4389@{#873}
OS	Ubuntu 18.04 LTS

cc @brave/legacy_qa @rebron @jumde @diracdeltas

[rebron]

cc: @darkdh

[LaurenWags]

Could not reproduce on the following versions on macOS x64 10.15.7

Release

Brave | 1.20.108 Chromium: 88.0.4324.182 (Official Build) (x86_64)
-- | --
Revision | 73ee5087001dcef33047c4ed650471b225dd8caf-refs/branch-heads/4324@{#2202}
OS | macOS Version 10.15.7 (Build 19H512)

Beta

Brave | 1.21.65 Chromium: 88.0.4324.182 (Official Build) beta (x86_64)
-- | --
Revision | 73ee5087001dcef33047c4ed650471b225dd8caf-refs/branch-heads/4324@{#2202}
OS | macOS Version 10.15.7 (Build 19H512)

Nightly

Brave | 1.22.42 Chromium: 89.0.4389.58 (Official Build) nightly (x86_64)
-- | --
Revision | 1a139f28ecc27719439e37c6b1533cee999cb802-refs/branch-heads/4389@{#1134}
OS | macOS Version 10.15.7 (Build 19H512)

[btlechowski]

Verification passed on

Brave	1.23.25 Chromium: 89.0.4389.86 (Official Build) nightly (64-bit)
Revision	0c2dac31bc21e806a791641316e99920f84ea52c-refs/branch-heads/4389@{#1472}
OS	Ubuntu 18.04 LTS

Verified test plan from the description

Verification passed on

Brave	1.23.54 Chromium: 89.0.4389.105 (Official Build) beta (x86_64)
Revision	14f44e21a9d539cd49c72468a29bfca4fa43f710-refs/branch-heads/4389_90@{#7}
OS	macOS Version 11.2.3 (Build 20D91)

Verified test plan from the description

Tor tab initialized	brave.com in normal tab	loading brave.com in Tor tab	loaded https://brave5t5rjjg3s6k.onion/ in Tor tab

---

Verification passed on

Brave | 1.23.56 Chromium: 89.0.4389.105 (Official Build) dev (64-bit)
-- | --
Revision | 14f44e21a9d539cd49c72468a29bfca4fa43f710-refs/branch-heads/4389_90@{#7}
OS | Windows 10 OS Version 2004 (Build 19041.867)

Verified test plan from the description