Timothy Flynn ae6599c07a LibWebView+WebContent+headless-browser: Make the page info IPCs async ...

The IPCs to request a page's text, layout tree, etc. are currently all
synchronous. This can result in a deadlock when WebContent also makes
a synchronous IPC call, as both ends will be waiting on each other.

This replaces the page info IPCs with a single, asynchronous IPC. This
new IPC is promise-based, much like our screenshot IPC.

(cherry picked from commit 3332230cef8091f94f5c30e1f1984c1038cd4a1d)

2024-11-12 10:45:53 -05:00

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