Transition cbuildbot urls to gerrit urls.
Transition cbuildbot urls to gerrit urls.

Change-Id: I0e373bcabf23abc35ad2a1c034501aa2152853f9

zhang0137/chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,chadversary/chromiumos.chromite,zhang0137/chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,zhang0137/chromite,chadversary/chromiumos.chromite