Avoid considering readonly password elements in password form

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 892ac14147fc894dcd05946fc6e03163f499cc8c..7670572e74b42ff2db7e86bf7c20bf8420ad99ad 100644
--- a/chrome/browser/password_manager/password_manager_browsertest.cc
+++ b/chrome/browser/password_manager/password_manager_browsertest.cc
@@ -1189,6 +1189,24 @@ IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
+                       DontPromptForPasswordFormWithReadonlyPasswordField) {
+  NavigateToFile("/password/password_form_with_password_readonly.html");
+
+  // Fill a form and submit through a <input type="submit"> button. Nothing
+  // special.
+  NavigationObserver observer(WebContents());
+  scoped_ptr<PromptObserver> prompt_observer(
+      PromptObserver::Create(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();
+  EXPECT_FALSE(prompt_observer->IsShowingPrompt());
+}
+
+IN_PROC_BROWSER_TEST_F(PasswordManagerBrowserTest,
                        PromptWhenEnableAutomaticPasswordSavingSwitchIsNotSet) {
   NavigateToFile("/password/password_form.html");