{Csv,Block}PageMeasurementResults no longer perform streaming output.

tools/perf/measurements/loading_profile.py

Index: tools/perf/measurements/loading_profile.py
diff --git a/tools/perf/measurements/loading_profile.py b/tools/perf/measurements/loading_profile.py
index d5e51ca26f04d385aba74cd6044dbcd905bf51b0..b8202fb00595fd4bcd6a2561fc971cdc07921370 100644
--- a/tools/perf/measurements/loading_profile.py
+++ b/tools/perf/measurements/loading_profile.py
@@ -17,10 +17,6 @@ class LoadingProfile(page_measurement.PageMeasurement):
   def __init__(self):
     super(LoadingProfile, self).__init__(discard_first_result=True)
 
-  @property
-  def results_are_the_same_on_every_page(self):
-    return False
-
   def CustomizeBrowserOptions(self, options):
     if not perf_profiler.PerfProfiler.is_supported(browser_type='any'):
       raise Exception('This measurement is not supported on this platform')