AFDO: update 9999 chrome ebuild too.
AFDO: update 9999 chrome ebuild too.

In the AFDO process we modify the current chrome ebuild to add
information about the AFDO profile used for each architecture. This is
causing problems while doing the chrome uprev because the new upreved
ebuild comes from the 9999 ebuild version which does not contains the
AFDO profile info and therefore never compares equal to the previous
version. This is causing unnecessary uprevs.
The fix is that whenever we update the current chrome ebuild with the
AFDO profile info, we also modify the 9999 version of the build.

BUG=None
TEST=Whitebox testing
     run_tests.

Change-Id: I6023a06b4cf26868dce05addbe7e304e554455a8
Reviewed-on: https://chromium-review.googlesource.com/210345
Reviewed-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Tested-by: Luis Lozano <b1b2d032e61ab81482ec067b4d64feefa7d5de96@chromium.org>
Commit-Queue: Luis Lozano <b1b2d032e61ab81482ec067b4d64feefa7d5de96@chromium.org>

bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite