Added test to check that GPU features are listed as hardware accelerated.

content/test/gpu/gpu_tests/hardware_accelerated_feature.py

Index: content/test/gpu/gpu_tests/hardware_accelerated_feature.py
diff --git a/content/test/gpu/gpu_tests/hardware_accelerated_feature.py b/content/test/gpu/gpu_tests/hardware_accelerated_feature.py
new file mode 100644
index 0000000000000000000000000000000000000000..a42459b20a498ab1669ce3043578b13a65fec344
--- /dev/null
+++ b/content/test/gpu/gpu_tests/hardware_accelerated_feature.py
@@ -0,0 +1,69 @@
+# 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 hardware_accelerated_feature_expectations as expectations
+
+from telemetry import test
+from telemetry.page import page_set
+from telemetry.page import page_test
+
+test_harness_script = r"""
+  function VerifyHardwareAccelerated(feature) {
+    feature += ': '
+    var list = document.querySelector('.feature-status-list');
+    for (var i=0; i < list.childElementCount; i++) {
+      var span_list = list.children[i].getElementsByTagName('span');
+      var feature_str = span_list[0].textContent;
+      var value_str = span_list[1].textContent;
+      if ((feature_str == feature) &&
+          (value_str == 'Hardware accelerated')) {
+        return true;
+      }
+    }
+    return false;
+  };
+""";
+
+class HardwareAcceleratedFeatureValidator(page_test.PageTest):
+  def __init__(self):
+    super(HardwareAcceleratedFeatureValidator, self).__init__('ValidatePage')
+
+  def ValidatePage(self, page, tab, results):
+    feature = page.feature
+    if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
+      raise page_test.Failure('%s not hardware accelerated' % feature)
+
+def safe_feature_name(feature):
+  return feature.lower().replace(' ', '_')
+
+class HardwareAcceleratedFeature(test.Test):
+  """Tests GPU acceleration is reported as active for various features"""
+  test = HardwareAcceleratedFeatureValidator
+
+  def CreateExpectations(self, page_set):
+    return expectations.HardwareAcceleratedFeatureExpectations()
+
+  def CreatePageSet(self, options):
+    features = ['WebGL', 'Canvas', '3D CSS']
+
+    page_set_dict = {
+      'description': 'Tests GPU acceleration is reported as active',
+      'user_agent_type': 'desktop',
+      'pages': []
+    }
+
+    pages = page_set_dict['pages']
+
+    for feature in features:
+      pages.append({
+        'name': 'HardwareAcceleratedFeature.%s_accelerated' %
+            safe_feature_name(feature),
+        'url': 'chrome://gpu',
+        'navigate_steps': [
+          { "action": 'navigate' }
+        ],
+        'script_to_evaluate_on_commit': test_harness_script,
+        'feature': feature
+      })
+
+    return page_set.PageSet.FromDict(page_set_dict, '')