[Android] External deep link behaviour

[deeppandya]

• Deep link behaviour for already installed application
  In this scenario, we assume that user has already gone through the onboarding. so we don not need to do anything for existing users.
• Deep link behaviour for fresh install
  In this scenario, we need to show app onboarding with Help make Brave better and Set as default browser pages. and redirect user directly to feature specific modals. we need to delay highlighting the user bar for later sessions.

[Uni-verse]

Verified on Samsung Galaxy S21 using version:

Brave	1.58.117 Chromium: 116.0.5845.180 (Official Build) (64-bit) 
Revision	99255ad6abf2fa399c063683c051f973e1f5c0af
OS	Android 13; Build/TP1A.220624.014; 33; REL

Using Test Plan in brave/brave-core#19107 (comment)

VPN

• Ensured deep link for VPN will take user to the app store brave page and installing/opening the app will take user to VPN subscription screen.
• Ensured that user is presented with default browser + P3A onboarding screens.
• Ensured that when app is installed, using the deep link will just open the app.

Playlist

• Ensured deep link for Playlist will take user to the play store brave download page and installing/opening the app will take user to playlist screens.
• Ensured that user is presented with default browser + P3A onboarding screens.
• Ensured that when app is installed, using the deep link will just open the app.

Example	Example	Example	Example	Example	Example

Example	Example	Example	Example	Example	Example	Example	Example

[Uni-verse]

Verified on Samsung Galaxy Tab S7 using version(s):

Brave	1.58.117 Chromium: 116.0.5845.180 (Official Build) (64-bit) 
Revision	99255ad6abf2fa399c063683c051f973e1f5c0af
OS	Android 13; Build/TP1A.220624.014; 33; REL

Using Test Plan in brave/brave-core#19107 (comment)

VPN

• Ensured deep link for VPN will take user to the app store brave page and installing/opening the app will take user to VPN subscription screen.
• Ensured that user is presented with default browser + P3A onboarding screens.
• Ensured that when app is installed, using the deep link will just open the app.

Playlist

• Ensured deep link for Playlist will take user to the play store brave download page and installing/opening the app will take user to playlist screens.
• Ensured that user is presented with default browser + P3A onboarding screens.
• Ensured that when app is installed, using the deep link will just open the app.

VPN	Playlist
deeplink_vpn1.mp4	deeplink_playlist2.mp4