[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/benchmarks/media.py

Index: tools/perf/benchmarks/media.py
diff --git a/tools/perf/benchmarks/media.py b/tools/perf/benchmarks/media.py
index 6a4990fe8fdbb1f33ee0682734b9c7338e259c79..eff334562b278a9eb5969ede291f90cb145773ab 100644
--- a/tools/perf/benchmarks/media.py
+++ b/tools/perf/benchmarks/media.py
@@ -2,13 +2,14 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from measurements import media
-import page_sets
 from telemetry import benchmark
 from telemetry.page import page_test
 from telemetry.value import list_of_scalar_values
 from telemetry.value import scalar
 
+from measurements import media
+import page_sets
+
 
 class _MSEMeasurement(page_test.PageTest):
   def __init__(self):