Rename a few files to make their function clearer.
Update other files to remove dead code or improve function.
Review URL: https://codereview.chromium.org/865943007
Without specifying the resource path a number of tests and gms do not
work properly. The example given in the docs should specify the
resource path so that the example run is exemplary.
Review URL: https://codereview.chromium.org/898453003
