GitLab

Chromium already behaves like this in the IPC plumbing for IDB,
but the code can be simplified by pushing this into the WebKit
implementation itself.

Full landing sequence is:

(1) WebKit prep: Add new API stubs http://webkit.org/b/92414 
(2) Chromium changes: dispatch to old and new API https://chromiumcodereview.appspot.com/10830028 (this patch)
(3) WebKit changes: use the new API http://webkit.org/b/92278
(4) Chromium cleanup: delete old API usage
(5) WebKit changes: delete old API


Review URL: https://chromiumcodereview.appspot.com/10830028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150883 0039d316-1c4b-4281-b951-d872f2087c98