Update search engine defaults for DE / AU / NZ / IE

[bsclifton]

Description

Update search engine defaults for Germany (DE), Australia (AU), New Zealand (NZ), and IE (Ireland)

Test plan

See brave/internal#647

[btlechowski]

Verification passed on

Brave	0.70.112 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	Ubuntu 18.04 LTS

Verified test plan from https://github.com/brave/internal/issues/647

New Users US
Verified the search string

New Users PL
Verified the search string

New Users De
Verified the search string
Verified duckduckgo set as default search engine

New Users AU
Verified the search string
Verified duckduckgo set as default search engine

Upgraded Users De
Default search engine qwant was replaced by duckduckgo. Expected per https://github.com/brave/internal/issues/647#issuecomment-540854051
Search string is replaced for duckduckgo. Logged #6424

Upgraded Users De, custom default search engine (google)
Verified google remained default search engine
Search string is replaced for duckduckgo. Logged #6424

Upgraded Users De, custom default search engine (qwant)
Verified qwant remained default search engine
Search string is replaced for duckduckgo. Logged #6424

Upgraded Users AU
Default search engine google was replaced by duckduckgo. Expected per https://github.com/brave/internal/issues/647#issuecomment-540854051
Search string is replaced for duckduckgo. Logged #6424

Upgraded Users AU, custom default search engine (google)
Verified google remained default search engine
Search string is replaced for duckduckgo. Logged #6424

Upgraded Users AU, custom default search engine (duckduckgo)
Verified duckduckgo remained default search engine
Another instance of DuckDuckGo is added to search engines. Logged #6453

I was unable to test NZ and IE, because Ubuntu 18.04 does not support them. Setting regional formats does not work.

Verification is passed on

Brave	0.70.113 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified the test plan from Verified test plan from brave/internal#647

a. Users in the US,UK and INDIA locale:

• Verified the search string https://duckduckgo.com/?q=%s&t=brave and Google is the default search engine
  
• Verified new installs use Google as default
• Verified upgrades where the default was Google in 0.69.x retains Google on upgrade.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x was retained on upgrade.
• Verified for New Private, Guest, and Tor windows.
  • Tor windows use DDG by default
  • Encountered changing default SE doesn't change SE in Guest window #6470 for Guest window
• for the UK, INDIA, and Germanylocale only, encountered Incognito still being generated from translated strings #2147

b. New Users in the De/German locale:

Verified the search string https://duckduckgo.com/?q=%s&t=bravened and DDG is the default search engine

c. Upgraded Users in the De/German locale:

• Default search engine qwant is replaced by duckduckgo, after upgrade the search string displayed as https://duckduckgo.com/?q=%s&t=bravened
  
• Verified upgrades where the default search engine changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. DDG url changed after upgrade encountered Search string is replaced for duckduckgo upon upgrade in German locale #6424
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

d. New user in the AU/Australia locale:

Verified the search string https://duckduckgo.com/?q=%s&t=braveed and DDG is the default search engine

e. Upgraded Users in the AU/Australia locale:

• Default search engine google is replaced by duckduckgo, after upgrade the search string displayed as https://duckduckgo.com/?q=%s&t=braveed

• Verified upgrades where the default search engine changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. DDG url changed after upgrade encountered Search string is replaced for duckduckgo upon upgrade in German locale #6424
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

f. New user in the NZ/New Zealand locale:

Verified the search string https://duckduckgo.com/?q=%s&t=braveed and DDG is the default search engine

g. Upgraded Users in the NZ/New Zealand locale:

• Default search engine google is replaced by duckduckgo, after upgrade the search string displayed as https://duckduckgo.com/?q=%s&t=braveed

• Verified upgrades where the default search engine changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. DDG url changed after upgrade encountered Search string is replaced for duckduckgo upon upgrade in German locale #6424
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

h. New user in the IE/Ireland locale:

i. Upgraded Users in the IE/Ireland locale:
Default search engine google is replaced by duckduckgo, after upgrade the search string displayed as https://duckduckgo.com/?q=%s&t=braveed

• Verified upgrades where the default search engine changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. DDG url changed after upgrade encountered Search string is replaced for duckduckgo upon upgrade in German locale #6424
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

Verified passed with

Brave	0.70.115 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	macOS Version 10.13.6 (Build 17G5019)

For US and UK locales:

• Verified new installs use Google as default
• Verified upgrades where the default was Google in 0.69.x retains Google on upgrade.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x was retained on upgrade.
• Verified for New, Private, Guest, and Tor windows. See note below about Tor windows.
• for UK locale only, encountered Incognito still being generated from translated strings #2147

For Germany (DE) locale:

• Verified new installs use DDG as the default with new, expected URL from https://github.com/brave/internal/issues/647

• Verified upgrades where the default was Qwant (and never modified) change to DDG on upgrade. Uses new URL.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Qwant or DDG) in 0.69.x, the SE was retained on upgrade. Encountered DDG URL is being updated on upgrade - follow up to 6187 #6469 for DDG URL changing.
• Verified for Normal windows only.
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

For Australia (AU) locale:

• Verified new installs use DDG as the default with new, expected URL from https://github.com/brave/internal/issues/647

• Verified upgrades where the default was Google (and never modified) change to DDG on upgrade. Uses new URL.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. Encountered DDG URL is being updated on upgrade - follow up to 6187 #6469 for DDG URL changing.
• Verified for Normal windows only.
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

For New Zealand (NZ) locale:

• Verified new installs use DDG as the default with new, expected URL from https://github.com/brave/internal/issues/647

• Verified upgrades where the default was Google (and never modified) change to DDG on upgrade. Uses new URL.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. Encountered DDG URL is being updated on upgrade - follow up to 6187 #6469 for DDG URL changing.
• Verified for Normal windows only.
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

For Ireland (IE) locale:

• Verified new installs use DDG as the default with new, expected URL from https://github.com/brave/internal/issues/647

• Verified upgrades where the default was Google (and never modified) change to DDG on upgrade. Uses new URL.
• Verified upgrades where the default was user changed to DDG in 0.69.x retains DDG on upgrade. Encountered Another instance of DuckDuckGo is added to search engines on upgrade for AU/NZ/IE locale #6453 (comment). Default DDG uses old URL.
• Verified upgrades where the default was user changed to something else (not Google or DDG) in 0.69.x, the SE was retained on upgrade. Encountered DDG URL is being updated on upgrade - follow up to 6187 #6469 for DDG URL changing.
• Verified for Normal windows only.
• Was unable to check Private, Tor, Guest windows due to Browser crash when new private window is opened in German locale #6421

Notes:

• Tor windows use DDG by default.
• Encountered and logged issue changing default SE doesn't change SE in Guest window #6470 for unable to change Guest window SE - it either uses Google or you can toggle to DDG on the tab page in a Guest window.