DevTools: when script has URL all breakpoints are set using that URL and line number, otherwise breakpoint is set using script id and line number. Breakpoints set using URL will survive page reload.
DevTools: when script has URL all breakpoints are set using that URL and line number, otherwise breakpoint is set using script id and line number. Breakpoints set using URL will survive page reload.

BUG=13675
Review URL: http://codereview.chromium.org/131036

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@18793 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser