Add some basic success/failure UMA logging for autofill.

chrome/browser/autofill/form_structure.cc

Index: chrome/browser/autofill/form_structure.cc
diff --git a/chrome/browser/autofill/form_structure.cc b/chrome/browser/autofill/form_structure.cc
index 2958df6728282b46ecbdf4755861b7569ce68504..4329aaf533fb6b43b885f522ec49926a369e5cea 100644
--- a/chrome/browser/autofill/form_structure.cc
+++ b/chrome/browser/autofill/form_structure.cc
@@ -192,11 +192,12 @@ bool FormStructure::EncodeQueryRequest(const ScopedVector<FormStructure>& forms,
 }
 
 // static
-void FormStructure::ParseQueryResponse(const std::string& response_xml,
-                                       const std::vector<FormStructure*>& forms,
-                                       UploadRequired* upload_required) {
-  autofill_metrics::LogServerQueryMetric(
-      autofill_metrics::QUERY_RESPONSE_RECEIVED);
+void FormStructure::ParseQueryResponse(
+    const std::string& response_xml,
+    const std::vector<FormStructure*>& forms,
+    UploadRequired* upload_required,
+    autofill_metrics::LogServerQueryMetricFn log_server_query_metric) {
+  log_server_query_metric(autofill_metrics::QUERY_RESPONSE_RECEIVED);
 
   // Parse the field types from the server response to the query.
   std::vector<AutoFillFieldType> field_types;
@@ -206,8 +207,7 @@ void FormStructure::ParseQueryResponse(const std::string& response_xml,
   if (!parse_handler.succeeded())
     return;
 
-  autofill_metrics::LogServerQueryMetric(
-      autofill_metrics::QUERY_RESPONSE_PARSED);
+  log_server_query_metric(autofill_metrics::QUERY_RESPONSE_PARSED);
 
   bool heuristics_detected_fillable_field = false;
   bool query_response_overrode_heuristics = false;
@@ -260,7 +260,7 @@ void FormStructure::ParseQueryResponse(const std::string& response_xml,
   } else {
     metric_type = autofill_metrics::QUERY_RESPONSE_MATCHED_LOCAL_HEURISTICS;
   }
-  autofill_metrics::LogServerQueryMetric(metric_type);
+  log_server_query_metric(metric_type);
 }
 
 std::string FormStructure::FormSignature() const {