Remove didDownloadData stub added for waiting on chromium changes

This CL should be landed after the chromium-side change[1] is landed.

This stub code is introduced to add a new argument to didDownloadData[2].
Since the chromium-side change is landed[1], the stub code should be removed.



Review URL:

git-svn-id: svn:// bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed