[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc

Index: chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc
diff --git a/chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc b/chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc
index 117b7026975b2805802ab5ff1b94e1ba13346142..f5f2f99de868a03feda7d696d57bcb1373780ca4 100644
--- a/chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc
+++ b/chrome/browser/ui/autofill/tab_autofill_manager_delegate.cc
@@ -89,6 +89,7 @@ void TabAutofillManagerDelegate::ShowRequestAutocompleteDialog(
     const FormData& form,
     const GURL& source_url,
     const content::SSLStatus& ssl_status,
+    const AutofillMetrics& metric_logger,
     const base::Callback<void(const FormStructure*)>& callback) {
   HideRequestAutocompleteDialog();
 
@@ -97,6 +98,7 @@ void TabAutofillManagerDelegate::ShowRequestAutocompleteDialog(
                                                  form,
                                                  source_url,
                                                  ssl_status,
+                                                 metric_logger,
                                                  callback);
   autofill_dialog_controller_->Show();
 }