[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/benchmarks/inbox_benchmark.py

Index: tools/perf/benchmarks/inbox_benchmark.py
diff --git a/tools/perf/benchmarks/inbox_benchmark.py b/tools/perf/benchmarks/inbox_benchmark.py
index 02300e55ae1067116fba3e3fd05489203b279307..c25382fb716173293c71d254e5033d4db3fad420 100644
--- a/tools/perf/benchmarks/inbox_benchmark.py
+++ b/tools/perf/benchmarks/inbox_benchmark.py
@@ -2,10 +2,12 @@
 # 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
 
+from page_sets import inbox
+
+
 @benchmark.Disabled  # http://crbug.com/452257
 class Inbox(benchmark.Benchmark):
   """Runs the timeline based measurement against inbox pageset."""