diff --git a/common_service.cc b/common_service.cc
index 2fdd700..213267c 100644
--- a/common_service.cc
+++ b/common_service.cc
@@ -41,6 +41,7 @@
 using brillo::ErrorPtr;
 using brillo::string_utils::ToString;
 using std::string;
+using std::vector;
 using update_engine::UpdateAttemptFlags;
 using update_engine::UpdateEngineStatus;
 
@@ -103,6 +104,17 @@
   return true;
 }
 
+bool UpdateEngineService::AttemptInstall(brillo::ErrorPtr* error,
+                                         const string& omaha_url,
+                                         const vector<string>& dlc_ids) {
+  if (!system_state_->update_attempter()->CheckForInstall(dlc_ids, omaha_url)) {
+    // TODO(xiaochu): support more detailed error messages.
+    LogAndSetError(error, FROM_HERE, "Could not schedule install operation.");
+    return false;
+  }
+  return true;
+}
+
 bool UpdateEngineService::AttemptRollback(ErrorPtr* error, bool in_powerwash) {
   LOG(INFO) << "Attempting rollback to non-active partitions.";