Blink: prevent didAssociateFormControls notification while parsing the document.

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 5b767ba404606cb4cecb3eaeb36f52dd6e6fbebe..49ca26d8144535559fb4071140dba5ea093a4321 100644
--- a/chrome/browser/password_manager/password_manager_browsertest.cc
+++ b/chrome/browser/password_manager/password_manager_browsertest.cc
@@ -205,6 +205,28 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTestBase,
 }
 
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTestBase,
+                       NoPromptIfPasswordFormManagerDestroyed) {
+  NavigateToFile("/password/password_form.html");
+  // Simulate the Credential Manager API essentially destroying all the
+  // PasswordFormManager instances.
+  ChromePasswordManagerClient::FromWebContents(WebContents())
+      ->NotifyStorePasswordCalled();
+
+  // Fill a form and submit through a <input type="submit"> button. The renderer
+  // should not send "PasswordFormsParsed" messages after the page was loaded.
+  NavigationObserver observer(WebContents());
+  std::string fill_and_submit =
+      "document.getElementById('username_field').value = 'temp';"
+      "document.getElementById('password_field').value = 'random';"
+      "document.getElementById('input_submit_button').click()";
+  ASSERT_TRUE(content::ExecuteScript(RenderViewHost(), fill_and_submit));
+  observer.Wait();
+  std::unique_ptr<BubbleObserver> prompt_observer(
+      new BubbleObserver(WebContents()));
+  EXPECT_FALSE(prompt_observer->IsShowingSavePrompt());
+}
+
+IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTestBase,
                        PromptForSubmitWithInPageNavigation) {
   NavigateToFile("/password/password_navigate_before_submit.html");