Use file_util::GetFileSystemType() in crypto/nss_util.cc.

Review URL: https://codereview.chromium.org/147933003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248923 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248923
Move ownership of Password(Generation)Manager to ContentPasswordDriver.

Instead of PasswordManager and PasswordGenerationManager being
WebContentsUserData instances, they are changed to be owned by
ContentPasswordManager (which is in turn owned by PasswordManagerDelegateImpl,
which is a WCUD). Convenience functions are added to
PasswordManagerDelegateImpl in order to get Password(Generation)Manager from a
WebContents instance.
BUG=335099, 335026
TBR=thakis

Review URL: https://codereview.chromium.org/151413008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248924 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248924