IndexedDB API cleanup.

Fix Chromium impls and calls to WebIDB* interfaces to match
current WebKit implementation.  No change in behavior, just
fewer wrapped function calls.

R=dgrogan@chromium.org,darin@chromium.org

Review URL: http://codereview.chromium.org/7692006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@97687 0039d316-1c4b-4281-b951-d872f2087c98
11 files changed