[Arm64]: Disable MSE_ClearKey/EncryptedMediaTest.FrameSizeChangeVideo on Arm64.

content/browser/media/encrypted_media_browsertest.cc

 // Copyright (c) 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 "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/windows_version.h"
 #include "content/browser/media/media_browsertest.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
@@ skipping 157 matching lines @@
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, ConfigChangeVideo) {
   TestConfigChange();
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, FrameSizeChangeVideo) {
   // Times out on Windows XP. http://crbug.com/171937
 #if defined(OS_WIN)
   if (base::win::GetVersion() < base::win::VERSION_VISTA)
     return;
+#elif defined(__aarch64__)
+  // Times out on arm64 currently due to http://crbug.com/403308
+  return;
 #endif
   TestFrameSizeChange();
 }
 
 IN_PROC_BROWSER_TEST_F(EncryptedMediaTest, UnknownKeySystemThrowsException) {
   RunEncryptedMediaTest(kDefaultEmePlayer,
                         "bear-a_enc-a.webm",
                         kWebMAudioOnly,
                         "com.example.foo",
                         MSE,
                         kEmeNotSupportedError);
 }
 
 }  // namespace content