Use the parameterized ui_resources location.

I am moving ui/ui_resources -> ui/resources. There is a new temporary file in build that indicates the location of this directory so this two-sided patch can be landed in blink. This patch will be removed and ui/resources hardcoded when the landing is complete.

Review URL: https://codereview.chromium.org/386643002

git-svn-id: svn://svn.chromium.org/blink/trunk@177878 bbb929c8-8fbe-4397-9dbb-9b2b20218538