Select-to-speak extension code
This is an initial implementation of Select-to-speak. Given mouse events
that are "captured" - currently by holding down Search - it draws a box
around the area the user selects, and then speaks everything within that
box based on its accessible name.
This is not meant to be a final, complete implementation, just a good
starting point to begin experimenting.
Depends on:
https://codereview.chromium.org/2493923002/
BUG=
593887
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
Committed:
https://crrev.com/e6dd62f781641b4fa8e19d38f2ed04547ee5f4a2
Cr-Commit-Position: refs/heads/master@{#435555}