Merge all logic in PageMeasurementResults to PageTestResults.

tools/telemetry/telemetry/page/page_measurement.py

Index: tools/telemetry/telemetry/page/page_measurement.py
diff --git a/tools/telemetry/telemetry/page/page_measurement.py b/tools/telemetry/telemetry/page/page_measurement.py
index 13e9c479db4b8a7abbf0128a06785bee4fc55a70..54fa094f9eda08d756a6463669c76380b08a39fe 100644
--- a/tools/telemetry/telemetry/page/page_measurement.py
+++ b/tools/telemetry/telemetry/page/page_measurement.py
@@ -57,11 +57,7 @@ class PageMeasurement(page_test.PageTest):
       is_action_name_to_run_optional=is_action_name_to_run_optional)
 
   def ValidatePage(self, page, tab, results):
-    results.WillMeasurePage(page)
-    try:
-      self.MeasurePage(page, tab, results)
-    finally:
-      results.DidMeasurePage()
+    self.MeasurePage(page, tab, results)
 
   def MeasurePage(self, page, tab, results):
     """Override to actually measure the page's performance.