Add "previewing on hover" support for single-field autocomplete input

components/autofill/core/browser/test_autofill_driver.cc

Index: components/autofill/core/browser/test_autofill_driver.cc
diff --git a/components/autofill/core/browser/test_autofill_driver.cc b/components/autofill/core/browser/test_autofill_driver.cc
index 32fbfc954ada9fb3d17de761cfd29f6b616d7391..664df8990fb04bbe0ea8cee1e1ede92929ccb5b3 100644
--- a/components/autofill/core/browser/test_autofill_driver.cc
+++ b/components/autofill/core/browser/test_autofill_driver.cc
@@ -65,7 +65,11 @@ void TestAutofillDriver::SetURLRequestContext(
   url_request_context_ = url_request_context;
 }
 
-void TestAutofillDriver::RendererShouldSetNodeText(
+void TestAutofillDriver::RendererShouldFillFieldWithValue(
+    const base::string16& value) {
+}
+
+void TestAutofillDriver::RendererShouldPreviewFieldWithValue(
     const base::string16& value) {
 }