Add a ComboboxModel and strings for the account chooser's "More" button.

BUG=448011

Review URL: https://codereview.chromium.org/908493002

Cr-Commit-Position: refs/heads/master@{#315332}

chrome/app/generated_resources.grd

@@ -15517,6 +15517,21 @@ Do you accept?
       <message name="IDS_FLAGS_ENABLE_TOUCH_HOVER_DESCRIPTION" desc="Description of the 'Enable support for hover capable touchscreens' flag.">
         Enables hover feature by holding your finger just over the screen to experience a mouseover event.
       </message>
+
+      <!-- Credential management account chooser -->
+      <message name="IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_NO_THANKS" desc="Text of the button to dismiss the account chooser.">
+        No thanks
+      </message>
+      <message name="IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_MORE" desc="Text of the button to show more options on the account chooser.">
+        More
+      </message>
+      <message name="IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_PASSWORDS_LINK" desc="Text of the item on the account chooser to show existing passwords.">
+        Settings
+      </message>
+      <message name="IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_LEARN_MORE" desc="Text of the item on the account chooser to show the help center article about credential management.">
+        Learn more
+      </message>
+
     </messages>
   </release>
 </grit>

chrome/browser/ui/passwords/account_chooser_more_combobox_model.cc

+// Copyright 2015 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.
+
+#include "chrome/browser/ui/passwords/account_chooser_more_combobox_model.h"
+
+#include "base/logging.h"
+#include "chrome/grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+const int AccountChooserMoreComboboxModel::INDEX_MORE = 0;
+const int AccountChooserMoreComboboxModel::INDEX_LEARN_MORE = 1;
+const int AccountChooserMoreComboboxModel::INDEX_SETTINGS = 2;
+
+AccountChooserMoreComboboxModel::AccountChooserMoreComboboxModel() = default;
+
+AccountChooserMoreComboboxModel::~AccountChooserMoreComboboxModel() = default;
+
+int AccountChooserMoreComboboxModel::GetItemCount() const {
+  return 3;
+}
+
+base::string16 AccountChooserMoreComboboxModel::GetItemAt(int index) {
+  switch (index) {
+    default:
+      NOTREACHED();
+    case INDEX_MORE:
+      return l10n_util::GetStringUTF16(
+          IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_MORE);
+    case INDEX_LEARN_MORE:
+      return l10n_util::GetStringUTF16(
+          IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_LEARN_MORE);
+    case INDEX_SETTINGS:
+      return l10n_util::GetStringUTF16(
+          IDS_CREDENTIAL_MANAGEMENT_ACCOUNT_CHOOSER_PASSWORDS_LINK);
+  }
+}
+
+bool AccountChooserMoreComboboxModel::IsItemSeparatorAt(int index) {
+  return false;
+}
+
+int AccountChooserMoreComboboxModel::GetDefaultIndex() const {
+  return 0;
+}
+
+bool AccountChooserMoreComboboxModel::IsItemEnabledAt(int index) const {
+  return true;
+}

chrome/browser/ui/passwords/account_chooser_more_combobox_model.h

+// Copyright 2015 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.
+
+#ifndef CHROME_BROWSER_UI_PASSWORDS_ACCOUNT_CHOOSER_MORE_COMBOBOX_MODEL_H_
+#define CHROME_BROWSER_UI_PASSWORDS_ACCOUNT_CHOOSER_MORE_COMBOBOX_MODEL_H_
+
+#include "ui/base/models/combobox_model.h"
+
+// Model for the account chooser's "More" combobox.
+class AccountChooserMoreComboboxModel : public ui::ComboboxModel {
+ public:
+  AccountChooserMoreComboboxModel();
+  ~AccountChooserMoreComboboxModel() override;
+
+  // Index constants.
+  static const int INDEX_MORE;
+  static const int INDEX_LEARN_MORE;
+  static const int INDEX_SETTINGS;
+
+  // ui::ComboboxModel:
+  int GetItemCount() const override;
+  base::string16 GetItemAt(int index) override;
+  bool IsItemSeparatorAt(int index) override;
+  int GetDefaultIndex() const override;
+  bool IsItemEnabledAt(int index) const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AccountChooserMoreComboboxModel);
+};
+
+#endif  // CHROME_BROWSER_UI_PASSWORDS_ACCOUNT_CHOOSER_MORE_COMBOBOX_MODEL_H_

chrome/chrome_browser_ui.gypi

@@ -792,6 +792,8 @@
       'browser/ui/metro_pin_tab_helper_win.h',
       'browser/ui/passwords/account_avatar_fetcher.cc',
       'browser/ui/passwords/account_avatar_fetcher.h',
+      'browser/ui/passwords/account_chooser_more_combobox_model.h',
+      'browser/ui/passwords/account_chooser_more_combobox_model.cc',
       'browser/ui/passwords/manage_passwords_bubble.cc',
       'browser/ui/passwords/manage_passwords_bubble.h',
       'browser/ui/passwords/manage_passwords_bubble_model.cc',