Make calls to onWebGeolocationServiceDestroyed

      Needed by patch https://bugs.webkit.org/show_bug.cgi?id=45112

NOTE Depends on webkit r66837: (http://trac.webkit.org/changeset/66837)
 (will land once that is rolled in)

BUG=53394
TEST=fast/dom/Geolocation/*

Review URL: http://codereview.chromium.org/3338008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58687 0039d316-1c4b-4281-b951-d872f2087c98