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

chrome/test/ppapi/ppapi_browsertest.cc

 // Copyright (c) 2012 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/test/ppapi/ppapi_test.h"
 
 #include "base/test/test_timeouts.h"
 #include "build/build_config.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 1304 matching lines @@
 TEST_PPAPI_OUT_OF_PROCESS(Flash_GetSetting)
 TEST_PPAPI_OUT_OF_PROCESS(Flash_SetCrashData)
 // http://crbug.com/176822
 #if !defined(OS_WIN)
 TEST_PPAPI_OUT_OF_PROCESS(FlashClipboard)
 #endif
 TEST_PPAPI_OUT_OF_PROCESS(FlashFile)
 // Mac/Aura reach NOTIMPLEMENTED/time out.
 // mac: http://crbug.com/96767
 // aura: http://crbug.com/104384
-#if defined(OS_MACOSX)
+// cros: http://crbug.com/396502
+#if defined(OS_MACOSX) || defined(OS_CHROMEOS)
 #define MAYBE_FlashFullscreen DISABLED_FlashFullscreen
 #else
 #define MAYBE_FlashFullscreen FlashFullscreen
 #endif
 TEST_PPAPI_OUT_OF_PROCESS(MAYBE_FlashFullscreen)
 
 TEST_PPAPI_OUT_OF_PROCESS(PDF)
 
 // TODO(dalecurtis): Renable once the platform verification infobar has been
 // implemented; see http://crbug.com/270908
@@ skipping 10 matching lines @@
           LIST_TEST(FlashDRM_GetHmonitor)
           LIST_TEST(FlashDRM_GetVoucherFile));
 }
 
 TEST_PPAPI_IN_PROCESS(TalkPrivate)
 TEST_PPAPI_OUT_OF_PROCESS(TalkPrivate)
 
 #if defined(OS_CHROMEOS)
 TEST_PPAPI_OUT_OF_PROCESS(OutputProtectionPrivate)
 #endif