Disable all the tests that are flaking more than 5% on ChromeOS builders.

chrome/browser/ui/app_list/app_list_service_interactive_uitest.cc

 // Copyright 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 "chrome/browser/ui/app_list/app_list_service.h"
 
 #include "base/command_line.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 151 matching lines @@
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     command_line->AppendSwitch(switches::kShowAppList);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ShowAppListInteractiveTest);
 };
 
 // Test showing the app list using the command line switch.
-IN_PROC_BROWSER_TEST_F(ShowAppListInteractiveTest, ShowAppListFlag) {
+#if defined(OS_CHROMEOS)
+// http://crbug.com/396499
+#define MAYBE_ShowAppListFlag DISABLED_ShowAppListFlag
+#else
+#define MAYBE_ShowAppListFlag ShowAppListFlag
+#endif
+IN_PROC_BROWSER_TEST_F(ShowAppListInteractiveTest, MAYBE_ShowAppListFlag) {
   AppListService* service = test::GetAppListService();
   // The app list should already be shown because we passed
   // switches::kShowAppList.
   EXPECT_TRUE(service->IsAppListVisible());
 
   // Create a browser to prevent shutdown when we dismiss the app list.  We
   // need to do this because switches::kShowAppList suppresses the creation of
   // any browsers.
   Profile* profile = service->GetCurrentAppListProfile();
   CreateBrowser(profile);
@@ skipping 64 matching lines @@
 
   // Create a browser for the Default profile. This stops MaybeTeminate being
   // called when the app list window is dismissed. Use the last used browser
   // profile to verify that it is different and causes ProfileManager to load a
   // new profile.
   CreateBrowser(profile_manager->GetLastUsedProfile());
   EXPECT_EQ(2u, profile_manager->GetNumberOfProfiles());
 
   service->DismissAppList();
 }