Google's new "Ask YouTube" feature. Image: GoogleGoogle used its I/O developer conference on Tuesday to showcase how deeply it plans to embed AI across its products — from new models and a revamped search bar to forthcoming AI glasses and conversational search in YouTube.Why it matters: Google comes to the AI race with arguably the deepest set of assets, but also the largest amount of surface area to defend against a world of AI-native apps.Here's what Google has announced so far:YouTubeA new "A...