Rename AutofillPopupGlue to AutofillPopupBridge.

The naming scheme *Glue did not gain adoption, thus this CL renames
AutofillPopupGlue to AutofillPopupBridge to get consistency for all JNI classes.

BUG=None

Review URL: https://codereview.chromium.org/184043009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254333 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254333