[Activity Log] Enable end to end tests on windows.

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 8f40dfa71ce6176b390150169f25f9d09d61e54f..7b6490d54d913970d34369fcbd8bee4e11c427a9 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
@@ -31,16 +31,9 @@ class ActivityLogApiTest : public ExtensionApiTest {
   CommandLine saved_cmdline_;
 };
 
-#if defined(OS_WIN)
-// TODO(karenlees): test flaky on windows. See Bug: crbug.com/245594
-#define MAYBE_TriggerEvent DISABLED_TriggerEvent
-#else
-#define MAYBE_TriggerEvent TriggerEvent
-#endif
-
 // 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) {
+IN_PROC_BROWSER_TEST_F(ActivityLogApiTest, TriggerEvent) {
   ActivityLog::GetInstance(profile())->SetWatchdogAppActive(true);
   host_resolver()->AddRule("*", "127.0.0.1");
   const Extension* friend_extension = LoadExtensionIncognito(