[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/benchmarks/indexeddb_perf.py

Index: tools/perf/benchmarks/indexeddb_perf.py
diff --git a/tools/perf/benchmarks/indexeddb_perf.py b/tools/perf/benchmarks/indexeddb_perf.py
index d0e5ed2242d234b1e0cff624f662a0cde296cfee..65a8710f44f4c1a79dfeaf0aad7922f01872df0c 100644
--- a/tools/perf/benchmarks/indexeddb_perf.py
+++ b/tools/perf/benchmarks/indexeddb_perf.py
@@ -22,15 +22,17 @@ Cursors:
 import json
 import os
 
-from metrics import memory
-from metrics import power
 from telemetry import benchmark
-from telemetry import page as page_module
 from telemetry.core import util
+from telemetry import page as page_module
 from telemetry.page import page_set
 from telemetry.page import page_test
 from telemetry.value import scalar
 
+from metrics import memory
+from metrics import power
+
+
 class _IndexedDbMeasurement(page_test.PageTest):
   def __init__(self):
     super(_IndexedDbMeasurement, self).__init__()