Shade uninitialized about:sync fields

chrome/browser/sync/profile_sync_service.cc

Index: chrome/browser/sync/profile_sync_service.cc
diff --git a/chrome/browser/sync/profile_sync_service.cc b/chrome/browser/sync/profile_sync_service.cc
index 0f70f0b57cd819299182735d3134d1af8311d207..d8e23972d395c97779c833d0bae50e467fc19012 100644
--- a/chrome/browser/sync/profile_sync_service.cc
+++ b/chrome/browser/sync/profile_sync_service.cc
@@ -953,13 +953,16 @@ std::string ProfileSyncService::QuerySyncStatusSummary() {
   }
 }
 
-SyncBackendHost::Status ProfileSyncService::QueryDetailedSyncStatus() {
+bool ProfileSyncService::QueryDetailedSyncStatus(
+    SyncBackendHost::Status* result) {
   if (backend_.get() && backend_initialized_) {
-    return backend_->GetDetailedStatus();
+    *result = backend_->GetDetailedStatus();
+    return true;
   } else {
     SyncBackendHost::Status status;
     status.sync_protocol_error = last_actionable_error_;
-    return status;
+    *result = status;
+    return false;
   }
 }