[ebuild  N    ] gnome-extra/polkit-gnome-0.105-r1 

!!! The following installed packages are masked:
- www-client/google-chrome-52.0.2743.116::gentoo (masked by: google-chrome license(s))
A copy of the 'google-chrome' license is located at '/usr/portage/licenses/google-chrome'.

- app-emulation/virtualbox-bin-5.1.4.110228::gentoo (masked by: PUEL license(s))
A copy of the 'PUEL' license is located at '/usr/portage/licenses/PUEL'.

- dev-java/oracle-jdk-bin-1.8.0.102::gentoo (masked by: Oracle-BCLA-JavaSE license(s))
A copy of the 'Oracle-BCLA-JavaSE' license is located at '/usr/portage/licenses/Oracle-BCLA-JavaSE'.

For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.