Annotation unique id updated in error_reporter.cc.

Annotation unique_id of components/certificate_reporting/error_reporter.cc was
not unique and is updated.

BUG=656607

Review-Url: https://codereview.chromium.org/2902893003
Cr-Commit-Position: refs/heads/master@{#474942}

components/certificate_reporting/error_reporter.cc

@@ -100,7 +100,9 @@ bool EncryptSerializedReport(const uint8_t* server_public_key,
 }
 
 constexpr net::NetworkTrafficAnnotationTag kTrafficAnnotation =
-    net::DefineNetworkTrafficAnnotation("safe_browsing_extended_reporting", R"(
+    net::DefineNetworkTrafficAnnotation(
+        "safe_browsing_certificate_error_reporting",
+        R"(
         semantics {
           sender: "Safe Browsing Extended Reporting"
           description: