Roll cq_client.

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 77 matching lines @@
 // repo url provided in `git_repo_url` above, then
 // https://chromium-review.googlesource.com/#/admin/projects/infra/infra should
 // show general properties of your project.
 //
 // Also,
 // https://chromium-review.googlesource.com/#/admin/projects/infra/infra,access
 // should show ACLs for refs in your project, but you may need to be admin to
 // see it. This will come handy to enable and customize the CQ-related workflows
 // for your project.
 message Gerrit {
-  // If set, tells CQ to set score on a given label to mark result of CQ run.
-  // Typically, this is Commit-Queue-Verified label.
-  // If not set, CQ will just try to hit submit button.
+  // Optional. If set, tells CQ vote on a given label to mark result of CQ run.
+  // The vote is either -1 if failed or 1 on success, and will be given on
+  // non-dry runs only.
+  // This vote can then be used in Gerrit's rule for submitting issues, so as to
+  // require CQ run. CQ will attempt to submit issue only after setting this
+  // label.
   optional string cq_verified_label = 1;
 }
 
 // Verifiers are various types of checks that a Commit Queue performs on a CL.
 // All verifiers must pass in order for a CL to be landed. Configuration file
 // describes types of verifiers that should be applied to each CL and their
 // parameters.
 message Verifiers {
   // This verifier is used to ensure that an LGTM was posted to the code review
   // site from a valid project committer.
   // This verifier is not supported with Gerrit.
   optional ReviewerLgtmVerifier reviewer_lgtm = 1;
 
   // This verifier is used to check tree status before committing a CL. If the
   // tree is closed, then the verifier will wait until it is reopened.
   optional TreeStatusLgtmVerifier tree_status = 2;
 
   // This verifier triggers a set of tryjobs that are to be run on builders on
   // Buildbot. It automatically retries failed try-jobs and only allows CL to
   // land if each builder has succeeded in the latest retry. If a given tryjob
   // result is too old (>1 day) it is ignored.
   optional TryJobVerifier try_job = 3;
 
   // This verifier is used to ensure that the author has signed Google's
   // Contributor License Agreement.
   optional SignCLAVerifier sign_cla = 4;
 
   message ReviewerLgtmVerifier {
-    // Required. Name of the chrome-infra-auth group, which contains the
-    // list of identities authorized to approve (lgtm) a CL. This list is also
-    // known as a committer list and often corresponds to the list of accounts
-    // that have direct commit/push access to the repository. Some older lists
-    // are still stored in the CQ source code, but are being moved to the new
-    // location (https://crbug.com/511311).
+    // Required. Name of the chrome-infra-auth group, which contains the list of
+    // identities authorized to approve (lgtm) a CL and trigger CQ run or dry
+    // run.
     optional string committer_list = 1;
 
     // Number of seconds to wait for LGTM on CQ. Default value is 0.
     optional int32 max_wait_secs = 2;
 
     // Message to be posted to code review site when no LGTM is found. Default
     // value is "No LGTM from a valid reviewer yet. Only full committers are "
     // "accepted.\nEven if an LGTM may have been provided, it was from a "
     // "non-committer,\n_not_ a full super star committer.\nSee "
     // "http://www.chromium.org/getting-involved/become-a-committer\nNote that "
     // "this has nothing to do with OWNERS files."
     optional string no_lgtm_msg = 3;
+
+    // Optional, but recommended. Name of the chrome-infra-auth group,
+    // which contains the list of identities authorized to trigger CQ dry run.
+    // This is usually the same group as tryjob-access.
+    optional string dry_run_access_list = 4;
   }
 
   message TreeStatusLgtmVerifier {
     // Required. URL of the project tree status app.
     optional string tree_status_url = 1;
   }
 
   message TryJobVerifier {
     message Builder {
       // Name of the builder.
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       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 {}
 }