Modifications to skpicture_printer

tools/perf/perf_tools/skpicture_printer.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 os
 
 from telemetry.page import page_measurement
 
 _JS = 'chrome.gpuBenchmarking.printToSkPicture("{0}");'
 
 class SkPicturePrinter(page_measurement.PageMeasurement):
   def AddCommandLineOptions(self, parser):
-    parser.add_option('-o', '--outdir', help='Output directory')
+    parser.add_option('-s', '--skp-outdir',
+                      help='Output directory for the SKP files')
 
   def CustomizeBrowserOptions(self, options):
     options.extra_browser_args.extend(['--enable-gpu-benchmarking',
-                                       '--no-sandbox'])
+                                       '--no-sandbox',
+                                       '--enable-deferred-image-decoding',
+                                       '--force-compositing-mode'])
 
   def MeasurePage(self, page, tab, results):
-    if self.options.outdir is not None:
-      outpath = os.path.join(self.options.outdir, page.url_as_file_safe_name)
-    outpath = os.path.abspath(outpath)
+    skp_outdir = self.options.skp_outdir
+    if not skp_outdir:
+      raise Exception('Please specify --skp-outdir')
+    outpath = os.path.abspath(
+        os.path.join(skp_outdir,
+                     page.url_as_file_safe_name))
     # Replace win32 path separator char '\' with '\\'.
     js = _JS.format(outpath.replace('\\', '\\\\'))
     tab.EvaluateJavaScript(js)
     results.Add('output_path', 'path', outpath)