Disable ActivityLogApiTest.TriggerEvent on Mac OSX 10.6

chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc

Index: chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc
diff --git a/chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc b/chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc
index 126ce549068c3caf24f7c99d092a34df37fdda75..351e9ae4601d02a719c436e807c8ac543d6e9887 100644
--- a/chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc
+++ b/chrome/browser/extensions/api/activity_log_private/activity_log_private_apitest.cc
@@ -13,6 +13,10 @@
 #include "net/test/embedded_test_server/http_request.h"
 #include "net/test/embedded_test_server/http_response.h"
 
+#if defined(OS_MACOSX)
+#include "base/mac/mac_util.h"
+#endif
+
 using net::test_server::BasicHttpResponse;
 using net::test_server::HttpResponse;
 using net::test_server::HttpRequest;
@@ -56,6 +60,12 @@ class ActivityLogApiTest : public ExtensionApiTest {
 // The test extension sends a message to its 'friend'. The test completes
 // if it successfully sees the 'friend' receive the message.
 IN_PROC_BROWSER_TEST_F(ActivityLogApiTest, MAYBE_TriggerEvent) {
+#if defined(OS_MACOSX)
+  if (base::mac::IsOSSnowLeopard()) {
+    // This test flakes on 10.6 only. http://crbug.com/499176
+    return;
+  }
+#endif
   ActivityLog::GetInstance(profile())->SetWatchdogAppActiveForTesting(true);
 
   host_resolver()->AddRule("*", "127.0.0.1");