[Telemetry] Add 'name' attribute for pages, which allows for more human-readable printing

tools/perf/measurements/skpicture_printer.py

Index: tools/perf/measurements/skpicture_printer.py
diff --git a/tools/perf/measurements/skpicture_printer.py b/tools/perf/measurements/skpicture_printer.py
index 5a74453e399fc3e0c10faf8fa6717d09d33b17ba..00ded8a83718062b2cb47d5864971aa602b49693 100644
--- a/tools/perf/measurements/skpicture_printer.py
+++ b/tools/perf/measurements/skpicture_printer.py
@@ -26,7 +26,7 @@ class SkpicturePrinter(page_measurement.PageMeasurement):
       raise Exception('Please specify --skp-outdir')
     outpath = os.path.abspath(
         os.path.join(skp_outdir,
-                     page.url_as_file_safe_name))
+                     page.file_safe_name))
     # Replace win32 path separator char '\' with '\\'.
     js = _JS.format(outpath.replace('\\', '\\\\'))
     tab.EvaluateJavaScript(js)