Add chrome channel to cert logger reports

components/certificate_reporting/cert_logger.proto

Index: components/certificate_reporting/cert_logger.proto
diff --git a/components/certificate_reporting/cert_logger.proto b/components/certificate_reporting/cert_logger.proto
index 0d4b7601ca1d0c76b3aa146c99ddba632e2373eb..ea8a7b58ced21aa7c925d792aa9640bc7d3ad519 100644
--- a/components/certificate_reporting/cert_logger.proto
+++ b/components/certificate_reporting/cert_logger.proto
@@ -145,6 +145,18 @@ message CertLoggerRequest {
   // user that might affect certificate validation.
   optional CertLoggerFeaturesInfo features_info = 10;
 
+  enum ChromeChannel {
+    NONE = 0;
+    UNKNOWN = 1;
+    DEV = 2;
+    CANARY = 3;
+    BETA = 4;
+    STABLE = 5;
+  };
+
+  // The Chrome channel that this error occurred on.
+  optional ChromeChannel chrome_channel = 12;
+

[meacer, 2017/06/30 22:24:46]

nit: Let's add both the enum and the field after is_retry_upload to keep the
ordering.

[sperigo, 2017/06/30 23:37:27]

Done.

   // False when the report is attempted to be uploaded for the first time. True
   // in all other uploads.
   optional bool is_retry_upload = 11;