Disable blink_perf.xml_http_request

tools/perf/benchmarks/blink_perf.py

 # 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.
 
 import os
 
 from telemetry import benchmark
 from telemetry.core import util
 from telemetry.page import page_set
 from telemetry.page import page_test
@@ skipping 212 matching lines @@
 
 class BlinkPerfShadowDOM(benchmark.Benchmark):
   tag = 'shadow_dom'
   test = _BlinkPerfMeasurement
 
   def CreatePageSet(self, options):
     path = os.path.join(BLINK_PERF_BASE_DIR, 'ShadowDOM')
     return _CreatePageSetFromPath(path, SKIPPED_FILE)
 
 
+# This benchmark is for local testing, doesn't need to run on bots.
+@benchmark.Disabled()
 class BlinkPerfXMLHttpRequest(benchmark.Benchmark):
   tag = 'xml_http_request'
   test = _BlinkPerfMeasurement
 
   def CreatePageSet(self, options):
     path = os.path.join(BLINK_PERF_BASE_DIR, 'XMLHttpRequest')
     return _CreatePageSetFromPath(path, SKIPPED_FILE)