Remove UnsafeByteSequence.
Replace it with a smaller, less general class for reading
the contents of a file into a byte array or a string.
Remove the need for an additional buffer and instead read
the contents of the file directly into a buffer owned by
FileReader. Optimise for the case where the length
of the file is known.
This imposes the additional restriction on callers that the
path of the file they're reading is an absolute path. I've
checked that all callers obey that currently.
(Cherry picked from b0674a77ed67e30f2510064b89151002d7f2eb2a)
Bug: b/11411129
Change-Id: Ic020a45051416f2de9a2f78bd5f99a21feff17df
2 files changed
