tree 6dd5338a3d5b3d74219faad4d6979216c54741e0
parent 650df0f7be17dd2b7a64957371260a270d91b45d
author Alice Kober-Sotzek <aliceks@google.com> 1536927100 +0200
committer Alice Kober-Sotzek <aliceks@google.com> 1536927476 +0000

FormatUtil: Correctly fix the Math#round() error flagged by error-prone

The fix applied by I1c88102d4 got rid of the error-prone warning but
missed to address the actual issue in that line of code. The intention
of the original code was to compute a double/float percentage and
mathematically round it to the next integer/long value. However, as
(long * int / long) == long, the computed percentage was a long value,
for which the floor operation was automatically applied. Hence, the
round function was even meaningless. The correct fix is to use a double
value in the operation so that the result is also of type double and
preserves all fractions.

By doing so, we also get rid of the error-prone warning, which only
indirectly hinted at that error.

Change-Id: Iea07a05281faf00b0b52cf25a2fd35ca25b069c5