Add "previewing on hover" support for password field.

components/password_manager/core/browser/password_generation_manager_unittest.cc

Index: components/password_manager/core/browser/password_generation_manager_unittest.cc
diff --git a/components/password_manager/core/browser/password_generation_manager_unittest.cc b/components/password_manager/core/browser/password_generation_manager_unittest.cc
index 2187c214d99f3539a71cbc29da053b61098ec40c..53969b2062a0ce37369045bf5e52f6b2a6504b7b 100644
--- a/components/password_manager/core/browser/password_generation_manager_unittest.cc
+++ b/components/password_manager/core/browser/password_generation_manager_unittest.cc
@@ -65,6 +65,13 @@ class TestPasswordManagerDriver : public PasswordManagerDriver {
       const base::string16& password) OVERRIDE {
   }
 

[Ilya Sherman, 2014/05/13 00:44:05]

nit: No need for a blank line here, because these methods are all closely
related as implementing the PasswordManagerDriver interface.

[ziran.sun, 2014/05/14 15:35:12]

Done.

+  virtual void PreviewPasswordAutofillSuggestion(
+      const base::string16& username,
+      const base::string16& password) OVERRIDE {
+  }
+

[Ilya Sherman, 2014/05/13 00:44:05]

nit: Same applies here as well.

[ziran.sun, 2014/05/14 15:35:12]

Done.

+  virtual void ClearPasswordPreviewedForm() OVERRIDE {}
+
   const std::vector<autofill::FormData>& GetFoundAccountCreationForms() {
     return found_account_creation_forms_;
   }