Disable media.android.tough_video_cases on Android Nexus5X Perf

tools/perf/benchmarks/media.py

Index: tools/perf/benchmarks/media.py
diff --git a/tools/perf/benchmarks/media.py b/tools/perf/benchmarks/media.py
index df35c714831ef573d2185e361e6a6347e45e5bcd..1dc5e7d4ac030a126789c9e8aefd5e43173c012a 100644
--- a/tools/perf/benchmarks/media.py
+++ b/tools/perf/benchmarks/media.py
@@ -85,9 +85,16 @@ class MediaAndroid(perf_benchmark.PerfBenchmark):
   options = {'story_label_filter_exclude': 'is_4k,is_50fps'}
 
   @classmethod
-  def ShouldDisable(cls, possible_browser):  # crbug.com/448092
-    """Disable test for Android One device."""
-    return cls.IsSvelte(possible_browser)
+  def ShouldDisable(cls, possible_browser):
+    # crbug.com/448092
+    if cls.IsSvelte(possible_browser):
+        return True
+
+    # crbug.com/647372
+    if possible_browser.platform.GetDeviceTypeName() == 'Nexus 5X':
+      return True
+
+    return False
 
   @classmethod
   def Name(cls):