Roll CQ client changes 7d916d5..f59ed9f

third_party/cq_client/cq.proto

Index: third_party/cq_client/cq.proto
diff --git a/third_party/cq_client/cq.proto b/third_party/cq_client/cq.proto
index dcef0fbf82c0a64831dfc19da91243b2ec9bef81..56aab3872461530fb3cae391ebd4d98696e1e90c 100644
--- a/third_party/cq_client/cq.proto
+++ b/third_party/cq_client/cq.proto
@@ -150,9 +150,10 @@ message Verifiers {
       // Name of the builder.
       optional string name = 1;
 
-      // When true, the builder is triggered by CQ. Otherwise, it is expected to
-      // be triggered from another tryjob. Default value is true.
-      optional bool triggered_by_cq = 2;
+      // Optionally specify a builder name that triggers the given builder.
+      // Otherwise, CQ will trigger this builder (default). If in doubt, you
+      // probably won't need this.
+      optional string triggered_by = 2;
 
       // When this field is present, it marks given builder as experimental. It
       // is only executed on a given percentage of the CLs and the outcome does