This has been failing since the bot came online, so just going to disable the story for now. No real way to launch a bisect on this.

Traceback (most recent call last):
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 90, in _RunStoryAndProcessErrorIfNeeded
    state.RunStory(results)
  File "/b/swarming/w/ir/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/page/shared_page_state.py", line 296, in RunStory
    self._current_page.Run(self)
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/page/__init__.py", line 112, in Run
    self.RunPageInteractions(action_runner)
  File "/b/swarming/w/ir/tools/perf/page_sets/page_cycler_story.py", line 33, in RunPageInteractions
    _WEB_CONTENTS_TIMEOUT)
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/decorators.py", line 75, in wrapper
    return target(*args, **kwargs)
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/core/util.py", line 65, in WaitFor
    return catapult_util.WaitFor(condition, timeout)
  File "/b/swarming/w/ir/third_party/catapult/common/py_utils/py_utils/__init__.py", line 132, in WaitFor
    (timeout, GetConditionString()))
TimeoutException: Timed out while waiting 180s for HasReachedQuiescence.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4f202ccaf9fd1f6278d702b6867fa84f506740b2

commit 4f202ccaf9fd1f6278d702b6867fa84f506740b2
Author: rnephew <rnephew@chromium.org>
Date: Mon Jun 26 23:14:39 2017

[Telemetry] Disable Facebook story in loading.mobile benchmark on nexus7v2 bots.

TBR=nednguyen@google.com

Bug:  736877 
Change-Id: Iad88a2597c4c468301168ae3d279293de73122e8
Reviewed-on: https://chromium-review.googlesource.com/549047
Reviewed-by: rnephew <rnephew@chromium.org>
Commit-Queue: rnephew <rnephew@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482453}
[modify] https://crrev.com/4f202ccaf9fd1f6278d702b6867fa84f506740b2/tools/perf/page_sets/loading_mobile.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9be57a21992e089f32cb7f1958ff19fd5b9ac353

commit 9be57a21992e089f32cb7f1958ff19fd5b9ac353
Author: Kunihiko Sakamoto <ksakamoto@chromium.org>
Date: Tue Jun 27 09:11:10 2017

Rerecord Facebook story in loading.mobile and reenable it on Nexus7

Facebook story was timing out on perf bots while waiting 180s for
HasReachedQuiescence. This patch updates Facebook recording, and
re-enable the story on Nexus7 bot to see if if fixes the timeout.

Bug:  736073 ,  736877 
Change-Id: I2e0e0c92a36dfb1f0059d2f8e5affd558f726edb
Reviewed-on: https://chromium-review.googlesource.com/549538
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482578}
[modify] https://crrev.com/9be57a21992e089f32cb7f1958ff19fd5b9ac353/tools/perf/page_sets/data/loading_mobile.json
[add] https://crrev.com/9be57a21992e089f32cb7f1958ff19fd5b9ac353/tools/perf/page_sets/data/loading_mobile_002.wpr.sha1
[modify] https://crrev.com/9be57a21992e089f32cb7f1958ff19fd5b9ac353/tools/perf/page_sets/loading_mobile.py