Introduces the gr-http-password element, which is added to the settings
screen. The new element displays whether the user has an HTTP password
and allows the user to do any of the following actions:
- View the password,
- Generate a new password,
- Clear the password.
Bug: Issue 3911
Change-Id: I8b2dc328efd7577eb32f40472f7bb8a7c95ff87a
31958fcb69