Capture GAIA password for view-based offline login flow

Follow-up CL of https://chromium-review.googlesource.com/827709
to cover view-based offline login flow.

This requires passing password_manager::SyncPasswordData to
AuthenticateUser(..) mojo call defined in ash/public/interfaces/login_screen.mojom.
Therefore, also creating components/password_manager/public/interfaces/* to mirror
SyncPasswordData in mojo.

Bug:777994

Change-Id: Ied03f6cf38fb9dbaebc4eeb8bee8a6908476a59c
Reviewed-on: https://chromium-review.googlesource.com/840381
Commit-Queue: Jialiu Lin <jialiul@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Emily Stark <estark@chromium.org>
Reviewed-by: Vadym Doroshenko <dvadym@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
Reviewed-by: Xiaoyin Hu <xiaoyinh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#529937}

• ash/BUILD.gn[diff]
• ash/login/DEPS[diff]
• ash/login/login_screen_controller.cc[diff]
• ash/login/login_screen_controller_unittest.cc[diff]
• ash/login/mock_login_screen_client.cc[diff]
• ash/login/mock_login_screen_client.h[diff]
• ash/login/ui/lock_screen_sanity_unittest.cc[diff]
• ash/metrics/login_metrics_recorder_unittest.cc[diff]
• ash/public/interfaces/BUILD.gn[diff]
• ash/public/interfaces/login_screen.mojom[diff]
• chrome/browser/chromeos/login/helper.cc[diff]
• chrome/browser/chromeos/login/helper.h[diff]
• chrome/browser/chromeos/login/lock/screen_locker.cc[diff]
• chrome/browser/chromeos/login/lock/screen_locker.h[diff]
• chrome/browser/chromeos/login/lock/views_screen_locker.cc[diff]
• chrome/browser/chromeos/login/lock/views_screen_locker.h[diff]
• chrome/browser/chromeos/login/session/user_session_manager.cc[diff]
• chrome/browser/chromeos/login/ui/login_display_host_views.cc[diff]
• chrome/browser/chromeos/login/ui/login_display_host_views.h[diff]
• chrome/browser/ui/ash/login_screen_client.cc[diff]
• chrome/browser/ui/ash/login_screen_client.h[diff]
• components/password_manager/core/browser/hash_password_manager.h[diff]
• components/password_manager/public/interfaces/BUILD.gn[Added - diff]
• components/password_manager/public/interfaces/DEPS[Added - diff]
• components/password_manager/public/interfaces/OWNERS[Added - diff]
• components/password_manager/public/interfaces/sync_password_data.mojom[Added - diff]
• components/password_manager/public/interfaces/sync_password_data.typemap[Added - diff]
• components/password_manager/public/interfaces/sync_password_data_struct_traits.h[Added - diff]
• components/typemaps.gni[diff]