Get rid of ProfileURLRegExp

Profile URLs are created and handled in CPUProfileView. Instead of coding necessary information into a string we provide message element directly into the console message object.

BUG=None
R=alph@chromium.org

Review URL: https://codereview.chromium.org/148333002

git-svn-id: svn://svn.chromium.org/blink/trunk@165852 bbb929c8-8fbe-4397-9dbb-9b2b20218538