PasswordManager should trigger autofill for new forms + old PasswordFromManagers

chrome/browser/password_manager/password_manager_browsertest.cc

Index: chrome/browser/password_manager/password_manager_browsertest.cc
diff --git a/chrome/browser/password_manager/password_manager_browsertest.cc b/chrome/browser/password_manager/password_manager_browsertest.cc
index ae0d1bf10b8dca53bf5fdd612069827ebaa7920e..67f32a1e4730e49f470f00a85e401c7325cd1038 100644
--- a/chrome/browser/password_manager/password_manager_browsertest.cc
+++ b/chrome/browser/password_manager/password_manager_browsertest.cc
@@ -1315,3 +1315,45 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
   // Wait until that interaction causes the password value to be revealed.
   WaitForElementValue("password", "mypassword");
 }
+
+// Test that if a form gets autofilled, then it gets autofilled on re-creation
+// as well.
+IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest, ReCreatedFormsGetFilled) {
+  NavigateToFile("/password/dynamic_password_form.html");
+
+  // Fill in the credentials, and make sure they are saved.
+  NavigationObserver form_submit_observer(WebContents());
+  scoped_ptr<PromptObserver> prompt_observer(
+      PromptObserver::Create(WebContents()));
+  std::string create_fill_and_submit =
+      "document.getElementById('create_form_button').click();"
+      "window.setTimeout(function() {"
+      "  var form = document.getElementById('dynamic_form_id');"
+      "  form.username.value = 'temp';"
+      "  form.password.value = 'random';"
+      "  form.submit();"
+      "}, 0)";
+  ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), create_fill_and_submit));
+  form_submit_observer.Wait();
+  EXPECT_TRUE(prompt_observer->IsShowingPrompt());
+  prompt_observer->Accept();
+
+  // Reload the original page to have the saved credentials autofilled.
+  NavigationObserver reload_observer(WebContents());
+  NavigateToFile("/password/dynamic_password_form.html");
+  reload_observer.Wait();
+  std::string create_form =
+      "document.getElementById('create_form_button').click();";
+  ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), create_form));
+  // Wait until the username is filled, to make sure autofill kicked in.
+  WaitForElementValue("username_id", "temp");
+
+  // Now the form gets deleted and created again. It should get autofilled
+  // again.
+  std::string delete_form =
+      "var form = document.getElementById('dynamic_form_id');"
+      "form.parentNode.removeChild(form);";
+  ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), delete_form));
+  ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), create_form));
+  WaitForElementValue("username_id", "temp");
+}