GitLab

Following https://codereview.chromium.org/355573008, the only code left in WebDataService deals with IE 7/8 password data, so move this into a separate (WIN only class) and kill WebDataService.

BUG=181277
TEST=Everything still works
TBR=noms@chromium.org, zea@chromium.org, phajdan.jr@chromium.org
TBR'ing for removal of unneeded includes and API changes in (c/b/profile, c/b/sync, and  c/test/base respectively).

Review URL: https://codereview.chromium.org/364343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282143 0039d316-1c4b-4281-b951-d872f2087c98