metrics: Include base/macros.h instead of base/basictypes.h

metrics no longer uses the integer types from base/basictypes.h. It
should simply include base/macros.h for the DISALLOW_COPY_AND_ASSIGN
macro instead.

BUG=None
TEST=`FEATURES=test emerge-$BOARD metrics platform2`

Change-Id: Id325bcb6c9d3318b5b78e42a04da9c53d0a8c3ce
Reviewed-on: https://chromium-review.googlesource.com/216349


Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>