Start building message_center on Mac.

chrome/browser/notifications/message_center_notifications_browsertest.cc

 // Copyright (c) 2013 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 <string>
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 70 matching lines @@
                         GURL(),
                         ASCIIToUTF16("title"),
                         ASCIIToUTF16("message"),
                         WebKit::WebTextDirectionDefault,
                         EmptyString16(),
                         EmptyString16(),
                         new_delegate);
   }
 };
 
+// TODO(rsesek): Implement Message Center on Mac and get these tests passing
+// for real. http://crbug.com/179904
+#if !defined(OS_MACOSX)
+
 IN_PROC_BROWSER_TEST_F(MessageCenterNotificationsTest, RetrieveBaseParts) {
   // Make sure comamnd-line switch has an effect.
   EXPECT_TRUE(NotificationUIManager::DelegatesToMessageCenter());
   EXPECT_TRUE(manager());
   EXPECT_TRUE(message_center());
 }
 
 IN_PROC_BROWSER_TEST_F(MessageCenterNotificationsTest, BasicAddCancel) {
   manager()->Add(CreateTestNotification("hey"), profile());
   EXPECT_EQ(1u, message_center()->NotificationCount());
@@ skipping 14 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(MessageCenterNotificationsTest, ButtonClickedDelegate) {
   TestDelegate* delegate;
   manager()->Add(CreateTestNotification("n", &delegate), profile());
   message_center()->OnButtonClicked("n", 1);
   // Verify that delegate accumulated correct log of events.
   EXPECT_EQ("Display_ButtonClick_1_", delegate->log());
   delegate->Release();
 }
 
+#endif  // !defined(OS_MACOSX)