Rename telemetry.test.Test to telemetry.benchmark.Benchmark.

tools/perf/benchmarks/memory_pressure.py

Index: tools/perf/benchmarks/memory_pressure.py
diff --git a/tools/perf/benchmarks/memory_pressure.py b/tools/perf/benchmarks/memory_pressure.py
index fe00f47422a99417a4a1b3d8ebfa5a3e96356ca5..6fc3d41a6124a4302d1d2639f967656fb9de68a6 100644
--- a/tools/perf/benchmarks/memory_pressure.py
+++ b/tools/perf/benchmarks/memory_pressure.py
@@ -2,13 +2,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from telemetry import test
+from telemetry import benchmark
 from measurements import memory_pressure
 import page_sets
 
 
-@test.Enabled('has tabs')
-class MemoryPressure(test.Test):
+@benchmark.Enabled('has tabs')
+class MemoryPressure(benchmark.Benchmark):
   test = memory_pressure.MemoryPressure
   page_set = page_sets.Typical25PageSet
   options = {'pageset_repeat': 6}