Reserve space for the searchbox spinner, even when stopped.

Make the searchbox spinner invisible (transparent) when it's not active.  This prevents the size of the text field from varying depending on whether the spinner is spinning or not, which can cause an annoying flicker.

Bug: 2084293
Change-Id: Idd63a296d1f07c5bd47884040f21e4880038f424
1 file changed