Add WebGL test suppressions for the new Intel Linux bot

content/test/gpu/gpu_tests/webgl_conformance_expectations.py

Index: content/test/gpu/gpu_tests/webgl_conformance_expectations.py
diff --git a/content/test/gpu/gpu_tests/webgl_conformance_expectations.py b/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
index 71c10d14d9e4df659c11685b75785a6c1da750ad..099f5609d41fe9f56935a56b6859c3784c4f9608 100644
--- a/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl_conformance_expectations.py
@@ -220,7 +220,9 @@ class WebGLConformanceExpectations(GpuTestExpectations):
     self.Fail('deqp/data/gles2/shaders/linkage.html',
         ['linux', 'intel'], bug=540543)
     self.Fail('deqp/data/gles2/shaders/preprocessor.html',
-        ['linux', 'intel', 'opengl'], bug=1312)  # ANGLE bug id
+        ['linux', 'intel'], bug=1312)  # ANGLE bug id. See also 598910
+    self.Fail('conformance/glsl/bugs/sampler-array-using-loop-index.html',
+        ['linux', 'intel', 'opengl'], bug=598924)

[Ken Russell (switch to Gerrit), 2016/03/30 01:36:25]

Is "opengl" strictly needed (or correct) here (and above)? That's intended to
select ANGLE's backend and I'm not sure it'll be detected properly. See
_GetANGLERenderer in src/content/test/gpu/gpu_tests/gpu_test_expectations.py.

[Corentin Wallez, 2016/03/30 01:46:56]

I think it should be detect properly:
 - The code checks if "OpenGL" is in gl_renderer, and in the log file we see
that it is.
 - The expectation at line 222 was not triggered when running without ANGLE. The
change for the preprocessor expectation is to remove "opengl" so that the
--use-gl=desktop is matched too.

[Ken Russell (switch to Gerrit), 2016/03/30 01:55:38]

Maybe I'm misreading the logs but it looked to me like the GL_RENDERER string
was "Mesa DRI Intel(R) Haswell Desktop".

 
     # Android failures
     self.Fail('deqp/data/gles2/shaders/constants.html',