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

components/autofill/core/browser/test_autofill_driver.h

Index: components/autofill/core/browser/test_autofill_driver.h
diff --git a/components/autofill/core/browser/test_autofill_driver.h b/components/autofill/core/browser/test_autofill_driver.h
index 938fad64dd043e191f78679de25dfe8ea434b9d3..f786a08337e00b2b481a4f67f7e15e5199d2f429 100644
--- a/components/autofill/core/browser/test_autofill_driver.h
+++ b/components/autofill/core/browser/test_autofill_driver.h
@@ -41,7 +41,10 @@ class TestAutofillDriver : public AutofillDriver {
       const base::string16& username) OVERRIDE;
   virtual void RendererShouldClearFilledForm() OVERRIDE;
   virtual void RendererShouldClearPreviewedForm() OVERRIDE;
-  virtual void RendererShouldSetNodeText(const base::string16& value) OVERRIDE;
+  virtual void RendererShouldFillFieldWithValue(
+      const base::string16& value) OVERRIDE;
+  virtual void RendererShouldPreviewFieldWithValue(
+      const base::string16& value) OVERRIDE;
 
   // Methods that tests can use to specialize functionality.