Add spaceport benchmark to Chrome Remote Control.

tools/perf/perf_tools/spaceport.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.
+
+from chrome_remote_control import multi_page_benchmark
+from chrome_remote_control import util
+
+class Spaceport(multi_page_benchmark.MultiPageBenchmark):

[nduca, 2012/11/04 19:53:30]

SpaceportBenchmark

[tonyg, 2012/11/05 23:02:01]

Done.

+  def CustomizeBrowserOptions(self, options):
+    options.extra_browser_args.extend(['--disable-gpu-vsync'])
+
+  def MeasurePage(self, _, tab, results):
+    tab.runtime.Execute("""
+        window.__results = {};
+        window.console.log = function(str) {
+            if (!str) return;
+            var key_val = str.split(': ');
+            if (!key_val.length == 2) return;
+            __results[key_val[0]] = key_val[1];
+        };
+    """)
+

[nduca, 2012/11/04 19:53:30]

how are we protecting ourselves from running this against google.com? The test
should fail in that case.

[tonyg, 2012/11/05 23:02:01]

Rather than start the test with ?auto, I added a button click. So if the
'#start-performance-tests' button doesn't exist on the page, it will fail.

+    js_get_results = 'JSON.stringify(window.__results)'

[nduca, 2012/11/04 19:53:30]

why put the js here rather than just inside the evaluate call where we use this
var?

[tonyg, 2012/11/05 23:02:01]

Because it is used twice.

+    def _IsDone():
+      num_tests_in_benchmark = 30
+      result_dict = eval(tab.runtime.Evaluate(js_get_results))
+      return num_tests_in_benchmark == len(result_dict)
+    util.WaitFor(_IsDone, 1200)
+
+    result_dict = eval(tab.runtime.Evaluate(js_get_results))
+    for key in result_dict:
+      results.Add(key, 'ObjectsAt30FPS', float(result_dict[key]))
+    results.Add('Overall', 'ObjectsAt30FPS',
+                [float(x) for x in result_dict.values()])