Unbreak memory_benchmark some more.

tools/telemetry/telemetry/page_benchmark_results.py

Index: tools/telemetry/telemetry/page_benchmark_results.py
diff --git a/tools/telemetry/telemetry/page_benchmark_results.py b/tools/telemetry/telemetry/page_benchmark_results.py
index 0d729fdff865c169f8b4ee2a3140ca16bd6d27d9..8f1a0c1510a4224d33316cfe79d2187518dab223 100644
--- a/tools/telemetry/telemetry/page_benchmark_results.py
+++ b/tools/telemetry/telemetry/page_benchmark_results.py
@@ -117,7 +117,10 @@ class PageBenchmarkResults(PageTestResults):
         measurement_units_type = (measurement_name,
                                   value.units,
                                   value.data_type)
-        value_url = (value.output_value, page_values.page.url)
+        if value.data_type == 'histogram':
+          value_url = (value.value, page_values.page.url)
+        else:
+          value_url = (value.output_value, page_values.page.url)
         results_summary[measurement_units_type].append(value_url)
 
     # Output the results summary sorted by name, then units, then data type.
@@ -146,4 +149,3 @@ class PageBenchmarkResults(PageTestResults):
       if not data_type == 'histogram':
         values = [i[0] for i in value_url_list]
         self._PrintPerfResult(measurement, trace, values, units, data_type)
-