[chromium] Clean up WebAnimation animationId/groupId generation
Created attachment 160504 [details] Patch
Goal here is to get rid of AnimationIdVendor since it's used by both bindings code and WebCore code that's staying put.
Please wait for approval from abarth@webkit.org, dglazkov@chromium.org, fishd@chromium.org, jamesr@chromium.org or tkent@chromium.org before submitting, as this patch contains changes to the Chromium public API. See also https://trac.webkit.org/wiki/ChromiumWebKitAPI.
Comment on attachment 160504 [details] Patch R=me.
Committed r126650: <http://trac.webkit.org/changeset/126650>