[Telemetry] Rename RunSmoothness to RunPageInteractions

tools/perf/measurements/smoothness_unittest.py

 # Copyright 2013 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 sys
 
 from measurements import smoothness
 from metrics import power
 from telemetry import decorators
 from telemetry.core import exceptions
 from telemetry.core import wpr_modes
@@ skipping 21 matching lines @@
   def __init__(self):
     self.platform = FakePlatform()
 
 
 class AnimatedPage(page.Page):
   def __init__(self, page_set):
     super(AnimatedPage, self).__init__(
       url='file://animated_page.html',
       page_set=page_set, base_dir=page_set.base_dir)
 
-  def RunSmoothness(self, action_runner):
+  def RunPageInteractions(self, action_runner):
     action_runner.Wait(.2)
 
 
 class FakeTab(object):
   def __init__(self):
     self.browser = FakeBrowser()
 
   def ExecuteJavaScript(self, js):
     pass
 
@@ skipping 115 matching lines @@
   def testCleanUpTrace(self):
     self.TestTracingCleanedUp(smoothness.Smoothness, self._options)
 
   def testCleanUpPowerMetric(self):
     class FailPage(page.Page):
       def __init__(self, page_set):
         # pylint: disable=bad-super-call
         super(FailPage, self).__init__(
             url='file://blank.html',
             page_set=page_set, base_dir=page_set.base_dir)
-      def RunSmoothness(self, _):
+      def RunPageInteractions(self, _):
         raise exceptions.IntentionalException
 
     class FakePowerMetric(power.PowerMetric):
       start_called = False
       stop_called = True
       def Start(self, _1, _2):
         self.start_called = True
       def Stop(self, _1, _2):
         self.stop_called = True
 
     ps = self.CreateEmptyPageSet()
     ps.AddUserStory(FailPage(ps))
 
     class BuggyMeasurement(smoothness.Smoothness):
       fake_power = None
       # Inject fake power metric.
       def WillStartBrowser(self, platform):
         self.fake_power = self._power_metric = FakePowerMetric(platform)
 
     measurement = BuggyMeasurement()
     try:
       self.RunMeasurement(measurement, ps)
     except exceptions.IntentionalException:
       pass
 
     self.assertTrue(measurement.fake_power.start_called)
     self.assertTrue(measurement.fake_power.stop_called)