[telemetry] rasterize_and_record_micro: Increase timeout for document to load

tools/perf/measurements/rasterize_and_record_micro.py

 # Copyright 2013 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 sys
 import time
 
 from telemetry.core.util import TimeoutException
 from telemetry.page import page_measurement
 from telemetry.page import page_test
@@ skipping 40 matching lines @@
     backend = browser._browser_backend # pylint: disable=W0212
     self._chrome_branch_number = getattr(backend, 'chrome_branch_number', None)
     if (not self._chrome_branch_number or
         (sys.platform != 'android' and self._chrome_branch_number < 1713)):
       raise page_test.TestNotSupportedOnPlatformFailure(
           'rasterize_and_record_micro requires Chrome branch 1713 '
           'or later. Skipping measurement.')
 
   def MeasurePage(self, page, tab, results):
     try:
-      tab.WaitForJavaScriptExpression("document.readyState == 'complete'", 10)
+      tab.WaitForJavaScriptExpression("document.readyState == 'complete'", 30)

[tonyg, 2014/07/17 17:02:02]

Good catch. Let's change this to:

  tab.WaitForDocumentReadyStateToBeComplete()

It has a default timeout of 90s. Then this patch should be ready to land.

[gordanac, 2014/07/18 09:25:58]

Done.

     except TimeoutException:
       pass
     time.sleep(self.options.start_wait_time)
 
     record_repeat = self.options.record_repeat
     rasterize_repeat = self.options.rasterize_repeat
     # Enqueue benchmark
     tab.ExecuteJavaScript("""
         window.benchmark_results = {};
         window.benchmark_results.done = false;
@@ skipping 72 matching lines @@
           results.current_page, 'total_layers', 'count', total_layers))
       results.AddValue(scalar.ScalarValue(
           results.current_page, 'total_picture_layers', 'count',
           total_picture_layers))
       results.AddValue(scalar.ScalarValue(
           results.current_page, 'total_picture_layers_with_no_content', 'count',
           total_picture_layers_with_no_content))
       results.AddValue(scalar.ScalarValue(
           results.current_page, 'total_picture_layers_off_screen', 'count',
           total_picture_layers_off_screen))