signin: move SigninManagerBase::Signout to SigninManager.

chrome/browser/ui/webui/sync_setup_handler_unittest.cc

Index: chrome/browser/ui/webui/sync_setup_handler_unittest.cc
diff --git a/chrome/browser/ui/webui/sync_setup_handler_unittest.cc b/chrome/browser/ui/webui/sync_setup_handler_unittest.cc
index 345baa2f7e4ed4fa38794dbfff1412c20625eb6e..2f0de873f9b8856ab6dc154dd4fd86d2bf0f9c0b 100644
--- a/chrome/browser/ui/webui/sync_setup_handler_unittest.cc
+++ b/chrome/browser/ui/webui/sync_setup_handler_unittest.cc
@@ -793,7 +793,8 @@ TEST_P(SyncSetupHandlerNonCrosTest, UnrecoverableErrorInitializingSync) {
     GoogleServiceAuthError none(GoogleServiceAuthError::NONE);
     EXPECT_CALL(*mock_pss_, HasUnrecoverableError())
         .WillRepeatedly(Return(true));
-    mock_signin_->SignOut();
+    // On non-Cros platforms, we use SigninManager.
+    static_cast<SigninManager*>(mock_signin_)->SignOut();
     handler_->SigninFailed(none);
     ASSERT_EQ(3U, web_ui_.call_data().size());
     // Validate the second JS call (the first call was already tested by
@@ -843,7 +844,8 @@ TEST_P(SyncSetupHandlerNonCrosTest, GaiaErrorInitializingSync) {
         GoogleServiceAuthError::SERVICE_UNAVAILABLE);
     EXPECT_CALL(*mock_pss_, HasUnrecoverableError())
         .WillRepeatedly(Return(false));
-    mock_signin_->SignOut();
+    // On non-Cros platforms, we use SigninManager.
+    static_cast<SigninManager*>(mock_signin_)->SignOut();
     handler_->SigninFailed(unavailable);
     ASSERT_EQ(3U, web_ui_.call_data().size());
     // Validate the second JS call (the first call was already tested by