Fix the missing remove-link UI in protocol handler settings
A previous CL (https://codereview.chromium.org/
518673003/)
that introduced policy indicators for protocol handlers
introduced a bug that results in remove-link option not
being shown on protocol handler settings. The problem is
caused by a variable name being replaced in the last
minute. All occurrences of the variables were not replaced,
resulting in the problem. This CL replaces all occurrences
of the variable.
BUG=433562
Review URL: https://codereview.chromium.org/
764283003
Cr-Commit-Position: refs/heads/master@{#306208}