GitLab

Background: We plan to Add ReadDirectoryByPath() to GDataDirectoryService
and use the same ReadDirectoryCallback, and hide_hosted_documents  turned
out to be an obstacle. It's cleaner to check the setting in the caller,
where this setting matters anyway.

BUG=141147
TEST=confirm that the "show hosted documents" setting works as before

Review URL: https://chromiumcodereview.appspot.com/10836137

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150436 0039d316-1c4b-4281-b951-d872f2087c98