Increase jetstream benchmark timeout.

tools/perf/benchmarks/jetstream.py

 # Copyright 2014 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.
 
 """Runs Apple's JetStream benchmark.
 
 JetStream combines a variety of JavaScript benchmarks, covering a variety of
 advanced workloads and programming techniques, and reports a single score that
 balances them using geometric mean.
 
@@ skipping 38 matching lines @@
     del page  # unused
     tab.WaitForDocumentReadyStateToBeComplete()
     tab.EvaluateJavaScript('JetStream.start()')
     result = tab.WaitForJavaScriptCondition("""
         (function() {
           for (var i = 0; i < __results.length; i++) {
             if (!__results[i].indexOf('Raw results: ')) return __results[i];
           }
           return null;
         })();
-        """, timeout=60*12)
+        """, timeout=60*20)
     result = json.loads(result.partition(': ')[2])
 
     all_score_lists = []
     for k, v in result.iteritems():
       results.AddValue(list_of_scalar_values.ListOfScalarValues(
           results.current_page, k.replace('.', '_'), 'score', v['result'],
           important=False))
       # Collect all test scores to compute geometric mean.
       for i, score in enumerate(v['result']):
         if len(all_score_lists) <= i:
@@ skipping 15 matching lines @@
 
   def CreateStorySet(self, options):
     ps = story.StorySet(
         archive_data_file='../page_sets/data/jetstream.json',
         base_dir=os.path.dirname(os.path.abspath(__file__)),
         cloud_storage_bucket=story.INTERNAL_BUCKET)
     ps.AddStory(page_module.Page(
         'http://browserbench.org/JetStream/', ps, ps.base_dir,
         make_javascript_deterministic=False))
     return ps