[telemetry] Disable inbox_benchmark.Inbox.

Failing on the bots. See:
http://build.chromium.org/p/chromium.perf/builders/Mac%2010.9%20Perf%20%285%29/builds/3254

BUG=452257
TBR=manisharora@google.com

Review URL: https://codereview.chromium.org/879763003

Cr-Commit-Position: refs/heads/master@{#313206}

tools/perf/benchmarks/inbox_benchmark.py

@@ -2,14 +2,16 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from page_sets import inbox
-from telemetry import benchmark
-from telemetry.web_perf import timeline_based_measurement
-
-@benchmark.Disabled('android')
-class Inbox(benchmark.Benchmark):
-  """Runs the timeline based measurement against inbox pageset."""
-  test = timeline_based_measurement.TimelineBasedMeasurement
-
-  def CreatePageSet(self, options):
-    return inbox.InboxPageSet()
+# TODO: Benchmark is failing; see crbug.com/452257. Comment out instead of
+# disabling because the failure happens before the Disabled check.
+#from page_sets import inbox
+#from telemetry import benchmark
+#from telemetry.web_perf import timeline_based_measurement
+#
+#@benchmark.Disabled('android')
+#class Inbox(benchmark.Benchmark):
+#  """Runs the timeline based measurement against inbox pageset."""
+#  test = timeline_based_measurement.TimelineBasedMeasurement
+#
+#  def CreatePageSet(self, options):
+#    return inbox.InboxPageSet()