Modify all usage of PageMeasurement to use PageTest in tools/telemetry.

tools/telemetry/telemetry/page/profile_creator.py

Index: tools/telemetry/telemetry/page/profile_creator.py
diff --git a/tools/telemetry/telemetry/page/profile_creator.py b/tools/telemetry/telemetry/page/profile_creator.py
index 1fc092ffe81f5e78b98985c420be29b8d6463cb9..77260f59d200f47ebe290f3b53af3600ba1378d2 100644
--- a/tools/telemetry/telemetry/page/profile_creator.py
+++ b/tools/telemetry/telemetry/page/profile_creator.py
@@ -2,9 +2,9 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from telemetry.page import page_measurement
+from telemetry.page import page_test
 
-class ProfileCreator(page_measurement.PageMeasurement):
+class ProfileCreator(page_test.PageTest):
   """Base class for an object that constructs a Chrome profile."""
 
   def __init__(self):
@@ -15,5 +15,5 @@ class ProfileCreator(page_measurement.PageMeasurement):
   def page_set(self):
     return self._page_set
 
-  def MeasurePage(self, _, tab, results):
-    pass
+  def ValidateAndMeasurePage(self, _, tab, results):
+    pass