Remove hasPasswordField from the public __gCrWeb API.

ios/chrome/browser/passwords/password_controller_unittest.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/passwords/password_controller.h"
 
 #import <Foundation/Foundation.h>
 
 #include <memory>
 #include <utility>
@@ skipping 710 matching lines @@
      "<input id='un4' type='text' name='u4'>"
      "<input id='pw4' type='password' name='p4'>"
      "</form>"
      "<form>"
      "<input id='un5' type='text' name='u4'>"
      "<input id='pw5' type='password' name='p4'>"
      "</form>"
      "<form name=\"f6'\">"
      "<input id=\"un6'\" type='text' name=\"u6'\">"
      "<input id=\"pw6'\" type='password' name=\"p6'\">"
-     "</form>";
-
-// A script that resets all text fields.
-static NSString* kClearInputFieldsScript =
-    @"var inputs = document.getElementsByTagName('input');"
-     "for(var i = 0; i < inputs.length; i++){"
-     "  inputs[i].value = '';"
-     "}";
-
-// A script that we run after autofilling forms.  It returns
-// ids and values of all non-empty fields.
-static NSString* kInputFieldValueVerificationScript =
-    @"var result='';"
-     "var inputs = document.getElementsByTagName('input');"
-     "for(var i = 0; i < inputs.length; i++){"
-     "  var input = inputs[i];"
-     "  if (input.value) {"
-     "    result += input.id + '=' + input.value +';';"
-     "  }"
-     "}; result";
-
-// Test html content and expected result for __gCrWeb.hasPasswordField call.
-struct TestDataForPasswordFormDetection {
-  NSString* page_content;
-  BOOL contains_password;
-};
-
-// Tests that the existence of (or the lack of) a password field in the page is
-// detected correctly.
-TEST_F(PasswordControllerTest, HasPasswordField) {
-  TestDataForPasswordFormDetection test_data[] = {
-      // Form without a password field.
-      {@"<form><input type='text' name='password'></form>", NO},
-      // Form with a password field.
-      {@"<form><input type='password' name='password'></form>", YES}};
-  for (size_t i = 0; i < arraysize(test_data); i++) {
-    TestDataForPasswordFormDetection& data = test_data[i];
-    LoadHtml(data.page_content);
-    id result = ExecuteJavaScript(@"__gCrWeb.hasPasswordField()");
-    EXPECT_NSEQ(@(data.contains_password), result)
-        << " in test " << i << ": "
-        << base::SysNSStringToUTF8(data.page_content);
-  }
-}
-
-// Tests that the existence a password field in a nested iframe/ is detected
-// correctly.
-TEST_F(PasswordControllerTest, HasPasswordFieldinFrame) {
-  TestDataForPasswordFormDetection data = {
-    // Form with a password field in a nested iframe.
-    @"<iframe name='pf'></iframe>"
+     "</form>"
+     "<iframe name='pf'></iframe>"
      "<script>"
      "  var doc = frames['pf'].document.open();"
-     "  doc.write('<form><input type=\\'password\\'></form>');"
+     // Add a form inside iframe. It should also be matched and autofilled.
+     "  doc.write('<form><input id=\\'un7\\' type=\\'text\\' name=\\'u4\\'>');"
+     "  doc.write('<input id=\\'pw7\\' type=\\'password\\' name=\\'p4\\'>');"
+     "  doc.write('</form>');"
+     // Add a non-password form inside iframe. It should not be matched.
+     "  doc.write('<form><input id=\\'un8\\' type=\\'text\\' name=\\'u4\\'>');"
+     "  doc.write('<input id=\\'pw8\\' type=\\'text\\' name=\\'p4\\'>');"
+     "  doc.write('</form>');"
      "  doc.close();"
-     "</script>",
-    YES
-  };
-  LoadHtml(data.page_content);
-  id result = ExecuteJavaScript(@"__gCrWeb.hasPasswordField()");
-  EXPECT_NSEQ(@(data.contains_password), result)
-      << base::SysNSStringToUTF8(data.page_content);
-}
+     "</script>";
+
+// A script that resets all text fields, including those in iframes.
+static NSString* kClearInputFieldsScript =
+    @"function clearInputFields(win) {"
+     "  var inputs = win.document.getElementsByTagName('input');"
+     "  for (var i = 0; i < inputs.length; i++) {"
+     "    inputs[i].value = '';"
+     "  }"
+     "  var frames = win.frames;"
+     "  for (var i = 0; i < frames.length; i++) {"
+     "    clearInputFields(frames[i]);"
+     "  }"
+     "}"
+     "clearInputFields(window);";
+
+// A script that runs after autofilling forms.  It returns ids and values of all
+// non-empty fields, including those in iframes.
+static NSString* kInputFieldValueVerificationScript =
+    @"function findAllInputs(win) {"
+     "  var result = '';"
+     "  var inputs = win.document.getElementsByTagName('input');"
+     "  for (var i = 0; i < inputs.length; i++) {"
+     "    var input = inputs[i];"
+     "    if (input.value) {"
+     "      result += input.id + '=' + input.value + ';';"
+     "    }"
+     "  }"
+     "  var frames = win.frames;"
+     "  for (var i = 0; i < frames.length; i++) {"
+     "    result += findAllInputs(frames[i]);"
+     "  }"
+     "  return result;"
+     "};"
+     "var result = findAllInputs(window); result";
 
 struct FillPasswordFormTestData {
   const std::string origin;
   const std::string action;
   const char* username_field;
   const char* username_value;
   const char* password_field;
   const char* password_value;
   const BOOL should_succeed;
   NSString* expected_result;
 };
 
 // Tests that filling password forms works correctly.
 TEST_F(PasswordControllerTest, FillPasswordForm) {
   LoadHtml(kHtmlWithMultiplePasswordForms);
 
-  // TODO(crbug.com/614092): can we remove this assertion? This call is the only
-  // reason why hasPasswordField is a public API on gCrWeb. If the page does
-  // not contain a password field, shouldn't one of the expectations of the
-  // remaining tests also fail?
-  EXPECT_NSEQ(@YES, ExecuteJavaScript(@"__gCrWeb.hasPasswordField()"));
-
   const std::string base_url = BaseUrl();
   // clang-format off
   FillPasswordFormTestData test_data[] = {
     // Basic test: one-to-one match on the first password form.
     {
       base_url,
       base_url,
       "u0",
       "test_user",
       "p0",
       "test_password",
       YES,
       @"un0=test_user;pw0=test_password;"
     },
-    // Multiple forms match: they should all be autofilled.
+    // Multiple forms match (including one in iframe): they should all be
+    // autofilled.
     {
       base_url,
       base_url,
       "u4",
       "test_user",
       "p4",
       "test_password",
       YES,
       @"un4=test_user;pw4=test_password;un5=test_user;pw5=test_password;"
+      "un7=test_user;pw7=test_password;"
     },
     // The form matches despite a different action: the only difference
     // is a query and reference.
     {
       base_url,
       base_url,
       "u1",
       "test_user",
       "p1",
       "test_password",
@@ skipping 133 matching lines @@
   });
   EXPECT_EQ(2, success_counter);
   id result = ExecuteJavaScript(kInputFieldValueVerificationScript);
   EXPECT_NSEQ(@"u2=john.doe@gmail.com;p2=super!secret;"
                "u3=john.doe@gmail.com;p3=super!secret;",
               result);
 }
 
 BOOL PasswordControllerTest::BasicFormFill(NSString* html) {
   LoadHtml(html);
-  EXPECT_NSEQ(@YES, ExecuteJavaScript(@"__gCrWeb.hasPasswordField()"));
   const std::string base_url = BaseUrl();
   PasswordFormFillData form_data;
   SetPasswordFormFillData(form_data, base_url, base_url, "u0", "test_user",
                           "p0", "test_password", nullptr, nullptr, false);
   __block BOOL block_was_called = NO;
   __block BOOL return_value = NO;
   [passwordController_ fillPasswordForm:form_data
                       completionHandler:^(BOOL success) {
                         block_was_called = YES;
                         return_value = success;
@@ skipping 373 matching lines @@
 // Tests that an HTTPS page with a password field does not update the SSL status
 // to indicate DISPLAYED_PASSWORD_FIELD_ON_HTTP.
 TEST_F(PasswordControllerTest, HTTPSPassword) {
   LoadHtml(kHtmlWithPasswordForm, GURL("https://chromium.test"));
 
   web::SSLStatus ssl_status =
       web_state()->GetNavigationManager()->GetLastCommittedItem()->GetSSL();
   EXPECT_FALSE(ssl_status.content_status &
                web::SSLStatus::DISPLAYED_PASSWORD_FIELD_ON_HTTP);
 }