For Mac, add AppListViewDelegateObserver::OnShutdown

chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc

Index: chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc
diff --git a/chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc b/chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc
index 4ee32b3b3a9b42b877c5321c3265df7fbcc0fb4d..e354cb90e37591186965a801d993d3711fc3677b 100644
--- a/chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc
+++ b/chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc
@@ -46,24 +46,30 @@ class AppListServiceInteractiveTest : public InProcessBrowserTest {
 
 // ChromeOS does not support ShowForProfile(), or profile switching within the
 // app list. Profile switching on CrOS goes through a different code path.
-// The tests are flaky on Mac, so disable there too. See http://crbug.com/415264
-#if defined(OS_CHROMEOS) || defined(OS_MACOSX)
+#if defined(OS_CHROMEOS)
 #define MAYBE_ShowAndDismiss DISABLED_ShowAndDismiss
 #define MAYBE_SwitchAppListProfiles DISABLED_SwitchAppListProfiles
-#define MAYBE_SwitchAppListProfilesDuringSearch \
-    DISABLED_SwitchAppListProfilesDuringSearch
 #define MAYBE_ShowAppListNonDefaultProfile \
     DISABLED_ShowAppListNonDefaultProfile
 #define MAYBE_DeleteShowingAppList DISABLED_DeleteShowingAppList
 #else
 #define MAYBE_ShowAndDismiss ShowAndDismiss
 #define MAYBE_SwitchAppListProfiles SwitchAppListProfiles
-#define MAYBE_SwitchAppListProfilesDuringSearch \
-    SwitchAppListProfilesDuringSearch
 #define MAYBE_ShowAppListNonDefaultProfile ShowAppListNonDefaultProfile
 #define MAYBE_DeleteShowingAppList DeleteShowingAppList
 #endif
 
+// SwitchAppListProfilesDuringSearch disabled on ChromeOS for reasons above.
+// Disabled on Mac due to an AppKit bug which makes it flaky in rare cases.
+// http://crbug.com/417148.
+#if defined(OS_CHROMEOS) || defined(OS_MACOSX)
+#define MAYBE_SwitchAppListProfilesDuringSearch \
+    DISABLED_SwitchAppListProfilesDuringSearch
+#else
+#define MAYBE_SwitchAppListProfilesDuringSearch \
+    SwitchAppListProfilesDuringSearch
+#endif
+
 // Show the app list, then dismiss it.
 IN_PROC_BROWSER_TEST_F(AppListServiceInteractiveTest, MAYBE_ShowAndDismiss) {
   AppListService* service = test::GetAppListService();