Port trace_test to the new gpu_integration_test harness.

content/test/gpu/gpu_tests/trace_test.py

Index: content/test/gpu/gpu_tests/trace_test.py
diff --git a/content/test/gpu/gpu_tests/trace_test.py b/content/test/gpu/gpu_tests/trace_test.py
deleted file mode 100644
index 996cccac245dcf8c4457fdbae4ab9a6f86adbc84..0000000000000000000000000000000000000000
--- a/content/test/gpu/gpu_tests/trace_test.py
+++ /dev/null
@@ -1,126 +0,0 @@
-# Copyright (c) 2015 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 gpu_tests import gpu_test_base
-from gpu_tests import trace_test_expectations
-import page_sets
-
-from telemetry.page import legacy_page_test
-from telemetry.timeline import model as model_module
-from telemetry.timeline import tracing_config
-
-TOPLEVEL_GL_CATEGORY = 'gpu_toplevel'
-TOPLEVEL_SERVICE_CATEGORY = 'disabled-by-default-gpu.service'
-TOPLEVEL_DEVICE_CATEGORY = 'disabled-by-default-gpu.device'
-TOPLEVEL_CATEGORIES = [TOPLEVEL_SERVICE_CATEGORY, TOPLEVEL_DEVICE_CATEGORY]
-
-test_harness_script = r"""
-  var domAutomationController = {};
-
-  domAutomationController._finished = false;
-
-  domAutomationController.setAutomationId = function(id) {}
-
-  domAutomationController.send = function(msg) {
-    // Issue a read pixel to synchronize the gpu process to ensure
-    // the asynchronous category enabling is finished.
-    var temp_canvas = document.createElement("canvas")
-    temp_canvas.width = 1;
-    temp_canvas.height = 1;
-    var temp_gl = temp_canvas.getContext("experimental-webgl") ||
-                  temp_canvas.getContext("webgl");
-    if (temp_gl) {
-      temp_gl.clear(temp_gl.COLOR_BUFFER_BIT);
-      var id = new Uint8Array(4);
-      temp_gl.readPixels(0, 0, 1, 1, temp_gl.RGBA, temp_gl.UNSIGNED_BYTE, id);
-    } else {
-      console.log('Failed to get WebGL context.');
-    }
-
-    domAutomationController._finished = true;
-  }
-
-  window.domAutomationController = domAutomationController;
-"""
-
-
-class TraceValidatorBase(gpu_test_base.ValidatorBase):
-  def GetCategoryName(self):
-    raise NotImplementedError("GetCategoryName() Not implemented!")
-
-  def ValidateAndMeasurePage(self, page, tab, results):
-    timeline_data = tab.browser.platform.tracing_controller.StopTracing()
-    timeline_model = model_module.TimelineModel(timeline_data)
-
-    category_name = self.GetCategoryName()
-    event_iter = timeline_model.IterAllEvents(
-        event_type_predicate=model_module.IsSliceOrAsyncSlice)
-    for event in event_iter:
-      if (event.args.get('gl_category', None) == TOPLEVEL_GL_CATEGORY and
-          event.category == category_name):
-        break
-    else:
-      raise legacy_page_test.Failure(self._FormatException(category_name))
-
-  def CustomizeBrowserOptions(self, options):
-    options.AppendExtraBrowserArgs('--enable-logging')
-    options.AppendExtraBrowserArgs('--enable-experimental-canvas-features')
-
-  def WillNavigateToPage(self, page, tab):
-    config = tracing_config.TracingConfig()
-    config.chrome_trace_config.category_filter.AddExcludedCategory('*')
-    for cat in TOPLEVEL_CATEGORIES:
-      config.chrome_trace_config.category_filter.AddDisabledByDefault(
-          cat)
-    config.enable_chrome_trace = True
-    tab.browser.platform.tracing_controller.StartTracing(config, 60)
-
-  def _FormatException(self, category):
-    return 'Trace markers for GPU category was not found: %s' % category
-
-
-class _TraceValidator(TraceValidatorBase):
-  def GetCategoryName(self):
-    return TOPLEVEL_SERVICE_CATEGORY
-
-
-class _DeviceTraceValidator(TraceValidatorBase):
-  def GetCategoryName(self):
-    return TOPLEVEL_DEVICE_CATEGORY
-
-
-class TraceTestBase(gpu_test_base.TestBase):
-  """Base class for the trace tests."""
-  def CreateStorySet(self, options):
-    # Utilize pixel tests page set as a set of simple pages to load.
-    story_set = page_sets.PixelTestsStorySet(self.GetExpectations(),
-                                             base_name=self.Name())
-    for story in story_set:
-      story.script_to_evaluate_on_commit = test_harness_script
-    return story_set
-
-
-class TraceTest(TraceTestBase):
-  """Tests GPU traces are plumbed through properly."""
-  test = _TraceValidator
-  name = 'TraceTest'
-
-  @classmethod
-  def Name(cls):
-    return 'trace_test'
-
-  def _CreateExpectations(self):
-    return trace_test_expectations.TraceTestExpectations()
-
-
-class DeviceTraceTest(TraceTestBase):
-  """Tests GPU Device traces show up on devices that support it."""
-  test = _DeviceTraceValidator
-  name = 'DeviceTraceTest'
-
-  @classmethod
-  def Name(cls):
-    return 'device_trace_test'
-
-  def _CreateExpectations(self):
-    return trace_test_expectations.DeviceTraceTestExpectations()