[Password Manager] Send a request to the store if user clicks on an undetected password field

chrome/renderer/autofill/password_autofill_agent_browsertest.cc

Index: chrome/renderer/autofill/password_autofill_agent_browsertest.cc
diff --git a/chrome/renderer/autofill/password_autofill_agent_browsertest.cc b/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
index 144697576dc08a02b652506fad2912ddadcad399..ccd18184dc361d0504ba0b4b111b102072b4ca29 100644
--- a/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
+++ b/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
@@ -97,8 +97,8 @@ const char kEmptyFormHTML[] =
 
 const char kFormWithoutPasswordsHTML[] =
     "<FORM>"
-    "  <INPUT type='text' id='random_field'/>"
     "  <INPUT type='text' id='username'/>"
+    "  <INPUT type='text' id='random_field'/>"
     "</FORM>";
 
 const char kNonVisibleFormHTML[] =
@@ -899,6 +899,25 @@ TEST_F(PasswordAutofillAgentTest, SendPasswordFormsTest_FormWithoutPasswords) {
   EXPECT_TRUE(fake_driver_.password_forms_rendered()->empty());
 }
 
+TEST_F(PasswordAutofillAgentTest,
+       SendPasswordFormsTest_UndetectedPasswordField) {
+  fake_driver_.reset_password_forms_calls();
+  LoadHTML(kFormWithoutPasswordsHTML);
+  // Emulate that a password field appears but we don't detect that.
+  std::string script =
+      "document.getElementById('random_field').type = 'password';";
+  ExecuteJavaScriptForTests(script.c_str());
+  base::RunLoop().RunUntilIdle();
+  EXPECT_FALSE(fake_driver_.called_password_forms_parsed());
+
+  // When the user clicks on the field, a request to the store will be sent.
+  EXPECT_TRUE(SimulateElementClick("random_field"));
+  base::RunLoop().RunUntilIdle();
+  EXPECT_TRUE(fake_driver_.called_password_forms_parsed());
+  ASSERT_TRUE(fake_driver_.password_forms_parsed());
+  EXPECT_FALSE(fake_driver_.password_forms_parsed()->empty());
+}
+
 TEST_F(PasswordAutofillAgentTest, SendPasswordFormsTest_NonDisplayedForm) {
   fake_driver_.reset_password_forms_calls();
   LoadHTML(kNonDisplayedFormHTML);