Roll CQ client changes 7d916d5..f59ed9f

third_party/cq_client/cq.proto

 syntax = "proto2";
 
 // This message describes a Commit Queue configuration. The config file cq.cfg
 // should be stored in the config directory located on the branch that this CQ
 // should commit to.
 message Config {
   // Required. Version of the config format.
   optional int32 version = 1;
 
   // Required. Name of the CQ. May only contain characters [a-zA-Z0-9_]. It is
@@ skipping 132 matching lines @@
   message TreeStatusLgtmVerifier {
     // Required. URL of the project tree status app.
     optional string tree_status_url = 1;
   }
 
   message TryJobVerifier {
     message Builder {
       // 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
       // not affect the decicion whether a CL can land or not. This is typically
       // used to test new builders and estimate their capacity requirements.
       optional float experiment_percentage = 4;
     }
 
     message Bucket {
       // Name of the bucket. This is typically the same as a master name without
@@ skipping 25 matching lines @@
       optional int32 timeout_retry_weight = 5;
     }
 
     // Provides project specific trybot retry configuration. This overrides the
     // defaults used in the CQ.
     optional TryJobRetryConfig try_job_retry_config = 2;
   }
 
   message SignCLAVerifier {}
 }