Add "Sign In" button to the account chooser on Mac.

chrome/browser/ui/passwords/password_dialog_controller_mock.h

Index: chrome/browser/ui/passwords/password_dialog_controller_mock.h
diff --git a/chrome/browser/ui/passwords/password_dialog_controller_mock.h b/chrome/browser/ui/passwords/password_dialog_controller_mock.h
new file mode 100644
index 0000000000000000000000000000000000000000..054b976918c45193da6ea3fedcfa0a556c1bd1cb
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+++ b/chrome/browser/ui/passwords/password_dialog_controller_mock.h
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+// Copyright 2016 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_PASSWORD_DIALOG_CONTROLLER_MOCK_H_
+#define CHROME_BROWSER_UI_PASSWORDS_PASSWORD_DIALOG_CONTROLLER_MOCK_H_
+
+#include "base/macros.h"
+#include "chrome/browser/ui/passwords/password_dialog_controller.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+class PasswordDialogControllerMock : public PasswordDialogController {
+ public:
+  PasswordDialogControllerMock();
+  ~PasswordDialogControllerMock() override;
+
+  MOCK_CONST_METHOD0(GetLocalForms, const FormsVector&());
+  MOCK_CONST_METHOD0(GetFederationsForms, const FormsVector&());
+  MOCK_CONST_METHOD0(GetAccoutChooserTitle,
+                     std::pair<base::string16, gfx::Range>());
+  MOCK_CONST_METHOD0(ShouldShowSignInButton, bool());
+  MOCK_CONST_METHOD0(GetAutoSigninPromoTitle, base::string16());
+  MOCK_CONST_METHOD0(GetAutoSigninText,
+                     std::pair<base::string16, gfx::Range>());
+  MOCK_METHOD0(OnSmartLockLinkClicked, void());
+  MOCK_METHOD2(OnChooseCredentials, void(
+      const autofill::PasswordForm& password_form,
+      password_manager::CredentialType credential_type));
+  MOCK_METHOD0(OnSignInClicked, void());
+  MOCK_METHOD0(OnAutoSigninOK, void());
+  MOCK_METHOD0(OnAutoSigninTurnOff, void());
+  MOCK_METHOD0(OnCloseDialog, void());
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PasswordDialogControllerMock);
+};
+
+#endif  // CHROME_BROWSER_UI_PASSWORDS_PASSWORD_DIALOG_CONTROLLER_MOCK_H_