Task/Issue URL: https://app.asana.com/1/137249556945/task/1210421589932466

Description

Updates the pixels around password import prompts/buttons/dialogs, namely to include a source parameter indicating where the import was launched from.

Possible values:

• password_management_promo
• password_management_empty_state
• password_management_overflow
• autofill_settings_button
• unknown (should never happen in reality)

Steps to test this PR

Suggested logcat filter: message~:"Pixel sent.*source="

Password management view

• Fresh install, and visit Passwords from the browser overflow menu
• Verify: autofill_import_google_passwords_import_button_shown with params: {source=password_management_empty_state}
• Verify: autofill_import_google_passwords_preimport_prompt_displayed with params: {source=password_management_empty_state}
• Verify: autofill_import_google_passwords_import_button_tapped with params: {source=password_management_empty_state}
• Dismiss the dialog. Verify: autofill_import_google_passwords_result_user_cancelled with params: {stage=pre-import-dialog, source=password_management_empty_state}
• Manually add a password and return to the list
• Verify you see the password import promo, and autofill_import_google_passwords_import_button_shown with params: {source=password_management_promo}
• Tap the promo CTA; verify: autofill_import_google_passwords_import_button_tapped with params: {source=password_management_promo}
• Complete or cancel the import flow to return to the password list. Tap on overflow and choose Import Passwords From Google.
• Verify: autofill_import_google_passwords_overflow_menu_tapped with params: {source=password_management_overflow}
• Verify: autofill_import_google_passwords_preimport_prompt_displayed with params: {source=password_management_overflow}

Password settings screen

• Leave management screen, and visit app settings, then Passwords & Autofill
• Verify: autofill_import_google_passwords_import_button_shown with params: {source=autofill_settings_button}