InputScreenActivityParams   
  constructor(query: String, isTopOmnibar: Boolean, browserButtonsConfig: InputScreenBrowserButtonsConfig, showInstalledApps: Boolean = false, launchWithVoice: Boolean = false)
Parameters
query
The initial query text to pre-populate in the input field
isTopOmnibar  
whether the omnibar is positioned at the top of the screen
browserButtonsConfig  
configuration for displaying browser buttons (Fire Button, Tab Switcher, Menu)
showInstalledApps  
whether apps installed on the device should appear in autocomplete results
launchWithVoice  
whether to immediately launch voice input on activity start, if supported and enabled