[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/metrics/webrtc_stats.py

 # Copyright 2014 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 json
 import logging
 import re
 
-from metrics import Metric
 from telemetry.core import camel_case
 from telemetry.value import list_of_scalar_values
 
+from metrics import Metric
+
+
 INTERESTING_METRICS = {
     'packetsReceived': {
         'units': 'packets',
         'description': 'Packets received by the peer connection',
     },
     'packetsSent': {
         'units': 'packets',
         'description': 'Packets sent by the peer connection',
     },
     'googDecodeMs': {
@@ skipping 69 matching lines @@
 
       for stat_name, values in time_series.iteritems():
         stat_name_underscored = camel_case.ToUnderscore(stat_name)
         trace_name = 'peer_connection_%d_%s' % (i, stat_name_underscored)
         general_name = StripAudioVideoDistinction(stat_name)
         results.AddValue(list_of_scalar_values.ListOfScalarValues(
             results.current_page, trace_name,
             INTERESTING_METRICS[general_name]['units'], values,
             description=INTERESTING_METRICS[general_name]['description'],
             important=False))