Update OWNERS file.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1230813004

Cr-Commit-Position: refs/heads/master@{#29699}

OWNERS

 adamk@chromium.org
 bmeurer@chromium.org
 danno@chromium.org
-dcarney@chromium.org
-dslomov@chromium.org
+epertoso@chromium.org
+hablich@chromium.org
 hpayer@chromium.org
 ishell@chromium.org
 jarin@chromium.org
 jkummerow@chromium.org
 jochen@chromium.org
+littledan@chromium.org
 machenbach@chromium.org
+mlippautz@chromium.org
 marja@chromium.org
 mstarzinger@chromium.org
 mvstanton@chromium.org
 rmcilroy@chromium.org
 rossberg@chromium.org
-svenpanne@chromium.org
 titzer@chromium.org
 ulan@chromium.org
 verwaest@chromium.org