The color-picker tooltip now uses the new eye-dropper highlighter, by
using the pickColorFromPage inspector method instead of the XUL-based
eye-dropper tool.
Telemetry hasn't yet been re-implemented in the new eye-dropper highlighter
so the telemetry-related test code has been removed for now. This will be
added again in a later commit.
MozReview-Commit-ID: enSzSKHac4
--HG--
extra : rebase_source : dd5a54d149ac1872be8580660c70b8a02da9db66