BrowserOptions.extra_browser_args is now a set.

tools/perf/measurements/rasterize_and_record.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import time
 
 from metrics import smoothness
 from telemetry.page import page_measurement
 
 class StatsCollector(object):
@@ skipping 99 matching lines @@
     parser.add_option('--stop-wait-time', dest='stop_wait_time',
                       default=5,
                       help='Wait time before measurement is taken ' +
                       '(must be long enough to render one frame)')
 
   def CustomizeBrowserOptions(self, options):
     smoothness.SmoothnessMetrics.CustomizeBrowserOptions(options)
     # Run each raster task N times. This allows us to report the time for the
     # best run, effectively excluding cache effects and time when the thread is
     # de-scheduled.
-    options.AppendExtraBrowserArg(
-        '--slow-down-raster-scale-factor=' + str(options.raster_record_repeat))
-    # Enable impl-side-painting. Current version of benchmark only works for
-    # this mode.
-    options.AppendExtraBrowserArg('--enable-impl-side-painting')
-    options.AppendExtraBrowserArg('--force-compositing-mode')
-    options.AppendExtraBrowserArg('--enable-threaded-compositing')
+    options.AppendExtraBrowserArgs([
+        '--slow-down-raster-scale-factor=%d' % options.raster_record_repeat,
+        # Enable impl-side-painting. Current version of benchmark only works for
+        # this mode.
+        '--enable-impl-side-painting',
+        '--force-compositing-mode',
+        '--enable-threaded-compositing'
+    ])
 
   def MeasurePage(self, page, tab, results):
     self._metrics = smoothness.SmoothnessMetrics(tab)
 
     # Rasterize only what's visible.
     tab.ExecuteJavaScript(
         'chrome.gpuBenchmarking.setRasterizeOnlyVisibleContent();')
 
     # Wait until the page has loaded and come to a somewhat steady state.
     # Needs to be adjusted for every device (~2 seconds for workstation).
@@ skipping 46 matching lines @@
     results.Add('total_pixels_rasterized', 'pixels',
                 collector.total_pixels_rasterized,
                 data_type='unimportant')
     results.Add('total_pixels_recorded', 'pixels',
                 collector.total_pixels_recorded,
                 data_type='unimportant')
 
     if self.options.report_all_results:
       for k, v in rendering_stats.iteritems():
         results.Add(k, '', v)