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

chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm

Index: chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm b/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm
index 1b623f438e1cff994e468aa377d56055bb9204eb..80419d5ed86430e5de266e1a49fe2d27e01d240f 100644
--- a/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller_unittest.mm
@@ -17,7 +17,7 @@
 #import "chrome/browser/ui/cocoa/passwords/account_avatar_fetcher_manager.h"
 #import "chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.h"
 #import "chrome/browser/ui/cocoa/passwords/credential_item_button.h"
-#include "chrome/browser/ui/passwords/password_dialog_controller.h"
+#include "chrome/browser/ui/passwords/password_dialog_controller_mock.h"
 #include "components/autofill/core/common/password_form.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -56,24 +56,6 @@ std::unique_ptr<autofill::PasswordForm> Credential(const char* username) {
   return credential;
 }
 
-class PasswordDialogControllerMock : public PasswordDialogController {
- public:
-  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(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(OnAutoSigninOK, void());
-  MOCK_METHOD0(OnAutoSigninTurnOff, void());
-  MOCK_METHOD0(OnCloseDialog, void());
-};
-
 // Tests for the account chooser dialog view.
 class AccountChooserViewControllerTest : public CocoaTest,
                                          public PasswordPromptBridgeInterface {
@@ -122,6 +104,8 @@ void AccountChooserViewControllerTest::SetUpAccountChooser(
   EXPECT_CALL(dialog_controller_, GetAccoutChooserTitle())
       .WillOnce(testing::Return(std::make_pair(base::ASCIIToUTF16(kDialogTitle),
                                                gfx::Range(0, 5))));
+  EXPECT_CALL(dialog_controller_, ShouldShowSignInButton())
+      .WillOnce(testing::Return(local->size() == 1));
   [view_controller_ view];
   ASSERT_TRUE(testing::Mock::VerifyAndClearExpectations(&dialog_controller_));
 }
@@ -221,6 +205,15 @@ TEST_F(AccountChooserViewControllerTest, ClickTitleLink) {
                                      atIndex:0];
 }
 
+TEST_F(AccountChooserViewControllerTest, ClickSignIn) {
+  PasswordDialogController::FormsVector local_forms;
+  local_forms.push_back(Credential("pizza"));
+  SetUpAccountChooser(&local_forms);
+  EXPECT_TRUE(view_controller().signInButton);
+  EXPECT_CALL(dialog_controller(), OnSignInClicked());
+  [view_controller().signInButton performClick:nil];
+}
+
 TEST_F(AccountChooserViewControllerTest, ClosePromptAndHandleClick) {
   // A user may press mouse down, some navigation closes the dialog, mouse up
   // still sends the action. The view should not crash.
@@ -232,6 +225,8 @@ TEST_F(AccountChooserViewControllerTest, ClosePromptAndHandleClick) {
   [base::mac::ObjCCastStrict<CredentialItemButton>(
       [view_controller().credentialButtons objectAtIndex:0]) performClick:nil];
   [view_controller().cancelButton performClick:nil];
+  EXPECT_TRUE(view_controller().signInButton);
+  [view_controller().signInButton performClick:nil];
 }
 
 TEST_F(AccountChooserViewControllerTest, CloseOnEsc) {