Revert of Added tests to check that WebGL extensions are available.

content/test/gpu/gpu_tests/webgl_conformance.py

Index: content/test/gpu/gpu_tests/webgl_conformance.py
diff --git a/content/test/gpu/gpu_tests/webgl_conformance.py b/content/test/gpu/gpu_tests/webgl_conformance.py
index b2ec479ef1f7c840bb05e7b6c2f9609d583af44c..5fb6884b09ca2cdf79e640d5f30b15c948239cef 100644
--- a/content/test/gpu/gpu_tests/webgl_conformance.py
+++ b/content/test/gpu/gpu_tests/webgl_conformance.py
@@ -12,9 +12,7 @@
 from telemetry.page import page_test
 from telemetry.story.story_set import StorySet
 
-extensions_path = os.path.join(
-    path_util.GetChromiumSrcDir(),
-    'content', 'test', 'data', 'gpu')
+
 conformance_path = os.path.join(
     path_util.GetChromiumSrcDir(),
     'third_party', 'webgl', 'src', 'sdk', 'tests')
@@ -128,48 +126,6 @@
           '--disable-accelerated-video-decode'
       ])
 
-class WebglExtensionPage(gpu_test_base.PageBase):
-  def __init__(self, story_set, extension, webgl_version, expectations):
-    super(WebglExtensionPage, self).__init__(
-      url='file://' + extensions_path + '/webgl_extension_test.html',
-      page_set=story_set, base_dir=extensions_path,
-      shared_page_state_class=gpu_test_base.DesktopGpuSharedPageState,
-      name=('WebglExtension.%s' % extension),
-      expectations=expectations)
-    self.extension = extension
-    self.context_type = "webgl2" if webgl_version == 2 else "webgl"
-    self.script_to_evaluate_on_commit = conformance_harness_script
-
-  def RunNavigateSteps(self, action_runner):
-    super(WebglExtensionPage, self).RunNavigateSteps(action_runner)
-    action_runner.EvaluateJavaScript('checkExtension("%s", "%s")' %
-        (self.extension, self.context_type))
-    action_runner.WaitForJavaScriptCondition(
-        'webglTestHarness._finished', timeout_in_seconds=3)
-
-class WebglExtensionListPage(gpu_test_base.PageBase):
-  def __init__(self, story_set, extension_list, webgl_version, expectations):
-    super(WebglExtensionListPage, self).__init__(
-      url='file://' + extensions_path + '/webgl_extension_test.html',
-      page_set=story_set, base_dir=extensions_path,
-      shared_page_state_class=gpu_test_base.DesktopGpuSharedPageState,
-      name=('WebglExtension.TestCoverage'),
-      expectations=expectations)
-    self.extension_list = extension_list
-    self.context_type = "webgl2" if webgl_version == 2 else "webgl"
-    self.script_to_evaluate_on_commit = conformance_harness_script
-
-  def RunNavigateSteps(self, action_runner):
-    super(WebglExtensionListPage, self).RunNavigateSteps(action_runner)
-    extension_list_string = "["
-    for extension in self.extension_list:
-      extension_list_string = extension_list_string + extension + ", "
-    extension_list_string = extension_list_string + "]"
-    action_runner.EvaluateJavaScript('checkSupportedExtensions("%s", "%s")' %
-        (extension_list_string, self.context_type))
-    action_runner.WaitForJavaScriptCondition(
-        'webglTestHarness._finished', timeout_in_seconds=3)
-
 class WebglConformancePage(gpu_test_base.PageBase):
   def __init__(self, story_set, test, expectations):
     super(WebglConformancePage, self).__init__(
@@ -223,14 +179,6 @@
     ps = StorySet(serving_dirs=[''], base_dir=conformance_path)
 
     expectations = self.GetExpectations()
-
-    extension_tests = self.GetExtensionList()
-    ps.AddStory(WebglExtensionListPage(ps, extension_tests, self._webgl_version,
-          expectations))
-    for extension in extension_tests:
-      ps.AddStory(WebglExtensionPage(ps, extension, self._webgl_version,
-          expectations))
-
     for test in tests:
       ps.AddStory(WebglConformancePage(ps, test, expectations))
 
@@ -244,50 +192,6 @@
     else:
       return webgl2_conformance_expectations.WebGL2ConformanceExpectations(
           conformance_path)
-
-  def GetExtensionList(self):
-    if self._webgl_version == 1:
-      return [
-        'ANGLE_instanced_arrays',
-        'EXT_blend_minmax',
-        'EXT_disjoint_timer_query',
-        'EXT_frag_depth',
-        'EXT_shader_texture_lod',
-        'EXT_sRGB',
-        'EXT_texture_filter_anisotropic',
-        'OES_element_index_uint',
-        'OES_standard_derivatives',
-        'OES_texture_float',
-        'OES_texture_float_linear',
-        'OES_texture_half_float',
-        'OES_texture_half_float_linear',
-        'OES_vertex_array_object',
-        'WEBGL_compressed_texture_astc',
-        'WEBGL_compressed_texture_atc',
-        'WEBGL_compressed_texture_etc1',
-        'WEBGL_compressed_texture_pvrtc',
-        'WEBGL_compressed_texture_s3tc',
-        'WEBGL_debug_renderer_info',
-        'WEBGL_debug_shaders',
-        'WEBGL_depth_texture',
-        'WEBGL_draw_buffers',
-        'WEBGL_lose_context',
-      ]
-    else:
-      return [
-        'EXT_color_buffer_float',
-        'EXT_disjoint_timer_query',
-        'EXT_texture_filter_anisotropic',
-        'OES_texture_float_linear',
-        'WEBGL_compressed_texture_astc',
-        'WEBGL_compressed_texture_atc',
-        'WEBGL_compressed_texture_etc1',
-        'WEBGL_compressed_texture_pvrtc',
-        'WEBGL_compressed_texture_s3tc',
-        'WEBGL_debug_renderer_info',
-        'WEBGL_debug_shaders',
-        'WEBGL_lose_context',
-      ]
 
   @staticmethod
   def _ParseTests(path, version, webgl2_only, folder_min_version):