Add pixels for open tabs in search autosuggest

[anikiki]

Task/Issue URL: https://app.asana.com/0/1200581511062568/1208283215616231/f

Description

Added pixels.

Steps to test this PR

• Install from this branch.
• Filter logcat by m_autocomplete_click_switch_to_tab | m_autocomplete_displayed_switch_to_tab.
• Navigate to https://www.wikipedia.org.
• Open another tab.
• Type `wiki.
• Notice the first suggestion is the open tab.
• Tap on the suggestion.
• Notice in the logs (2 pixels sent with the correct params -> switch_to_tab_capable=true, showed_switch_to_tab=true):
  Pixel sent: m_autocomplete_displayed_switch_to_tab with params: {} {}
Pixel sent: m_autocomplete_click_switch_to_tab with params: {sb=false, sf=false, bc=false, fc=false, hc=true, sh=false, switch_to_tab_capable=true, showed_switch_to_tab=true} {}
• Open another tab.
• Type duck.
• Tap on the first search suggestion. Notice nothing in the logs with the initial filter.
• Filter logcat by showed_switch_to_tab.
• Notice in the logs:
  Pixel sent: m_autocomplete_click_phrase with params: {sb=false, sf=false, bc=false, fc=false, hc=true, sh=false, switch_to_tab_capable=true, showed_switch_to_tab=false} {}
• Close all tabs.
• Open a new tab and type duck.
• Tap on the first search suggestion and notice in logs:
  Pixel sent: m_autocomplete_click_phrase with params: {sb=false, sf=false, bc=false, fc=false, hc=true, sh=true, switch_to_tab_capable=false, showed_switch_to_tab=false} {}

NO UI changes

[anikiki]

• Bug: Unable to delete autocomplete history items #5168
• Bug: autocomplete pixels firing when Adding Bookmark #5165
• Android: Migrate auto-complete to Flow and Coroutines #5123
• Address the tasks in the Meta section #5105
• Add translations for open tabs in search autosuggest  #5065
• Add pixels for open tabs in search autosuggest #5064 👈
• Update algorithm to show the open tabs in the correct place #5063
• Handle clicks on "Switch to tab" #5042
• Include open tabs in the suggestions  #5019
• [Implementation] Android: Include existing open tabs in search autosuggest #5018
• develop

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[CrisBarreiro]

Looks good and works as expected! 🎉