Connecting UserClassifier to NtpSnippetsFetcher

components/ntp_snippets/user_classifier.cc

Index: components/ntp_snippets/user_classifier.cc
diff --git a/components/ntp_snippets/user_classifier.cc b/components/ntp_snippets/user_classifier.cc
index a9122343a1ee3e2977c2416e02121463455b04e1..a65a18fcf176f6d23281431ef1a448157cb37d58 100644
--- a/components/ntp_snippets/user_classifier.cc
+++ b/components/ntp_snippets/user_classifier.cc
@@ -280,6 +280,19 @@ UserClassifier::UserClass UserClassifier::GetUserClass() const {
   return UserClass::ACTIVE_NTP_USER;
 }
 
+std::string UserClassifier::GetUserClassNameForProto() const {
+  switch (GetUserClass()) {
+    case UserClass::RARE_NTP_USER:
+      return "RARE_NTP_USER";
+    case UserClass::ACTIVE_NTP_USER:
+      return "ACTIVE_NTP_USER";
+    case UserClass::ACTIVE_SUGGESTIONS_CONSUMER:
+      return "ACTIVE_SUGGESTIONS_CONSUMER";
+  }
+  NOTREACHED();
+  return std::string();
+}
+
 std::string UserClassifier::GetUserClassDescriptionForDebugging() const {
   switch (GetUserClass()) {
     case UserClass::RARE_NTP_USER: