Merge browser/ui/password and browser/ui/passwords.

Merge browser/ui/password and browser/ui/passwords. Somehow they got
created by concurrent CLs. Also move PasswordManagerPresenter to
browser/ui/passwords.

BUG=248589
TBR=jhawkins

Review URL: https://codereview.chromium.org/71003002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235080 0039d316-1c4b-4281-b951-d872f2087c98
Implement SyncEngine::DumpFiles()

Implemented SyncEngine::DumpFiles and MetadataDatabaseTest.DumpFiles.

Dumps all the file trackers for the given app.

TEST=Automated. Unit test MetadataDatabaseTest.DumpFiles.
BUG=None.

Review URL: https://codereview.chromium.org/71183002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235082 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235080
SVN changes up to revision 235082