Introduce an "ExtensionWantsToAct" method
Add an ExtensionWantsToAct() method on ExtensionActionAPI.
Even though we're not quite sure what we want the UI to look
like for an extension desiring to act, we can start a little
bit of the plumbing now. For instance, exposing a method that
allows a caller to check if an extension wants to act on a
given page.
BUG=417441
Review URL: https://codereview.chromium.org/597413003
Cr-Commit-Position: refs/heads/master@{#297309}
6 files changed