Document WebGL2 CTS expectations findings

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

Index: content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
diff --git a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
index 7ee1229411ff293c4b883946930b483ed75594dc..af402b45b052c2df922b8a1b8863e174eaf47dcd 100644
--- a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
@@ -95,6 +95,8 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/textures/misc/tex-unpack-params.html',
         ['win'], bug=483282)
 
+    # Failing because ANGLE using a different interpretation of the spec for
+    # CopyTexImage2D so that for example a copy from RGBA8 to R8 fails.

[Zhenyao Mo, 2016/04/22 18:50:16]

We should resolve this ambiguity in spec interpretation quickly and remove this
large trunk of entries.

Can you create a bug to track this? and update the bug IDs accordingly below.

     self.Fail('conformance2/textures/webgl_canvas/' +
         'tex-2d-r8-red-unsigned_byte.html',
         ['win'], bug=483282)
@@ -371,6 +373,8 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     # We want to mark this Flaky for all of Linux however we currently skip
     # all the tests on Intel. Tag this with AMD and Nvidia to avoid an
     # expectation conflict that would make this test run on Intel.
+    # Flaky because the virtual gl contexts implementation calls glUseProgram
+    # while a transform feedback is active.

[Zhenyao Mo, 2016/04/22 18:50:16]

Ah, my current CL (adding transform_feedback_manager) is addressing this.

     self.Flaky('deqp/functional/gles3/negativeshaderapi.html',
         ['linux', 'amd', 'nvidia'], bug=483282)