WebGL2 test expectations: add back suppression for Linux AMD

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

 # 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.webgl_conformance_expectations import WebGLConformanceExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
   def __init__(self, conformance_path):
     super(WebGL2ConformanceExpectations, self).__init__(conformance_path)
@@ skipping 602 matching lines @@
         'textureprojlodoffset.html',
         ['linux', 'amd'], bug=483282)
     self.Fail('deqp/functional/gles3/shadertexturefunction/texturegrad.html',
         ['linux', 'amd'], bug=483282)
     self.Fail('deqp/functional/gles3/shadertexturefunction/' +
         'texelfetchoffset.html',
         ['linux', 'amd'], bug=483282)
 
     self.Fail('deqp/functional/gles3/instancedrendering.html',
         ['linux', 'amd'], bug=483282)
+    self.Fail('deqp/functional/gles3/negativetextureapi.html',
+        ['linux', 'amd'], bug=483282)
     self.Fail('deqp/functional/gles3/transformfeedback/*.html',
         ['linux', 'amd'], bug=483282)
     self.Fail('deqp/functional/gles3/uniformbuffers/random.html',
         ['linux', 'amd'], bug=483282)
 
     self.Fail('conformance2/misc/uninitialized-test-2.html',
         ['linux', 'amd'], bug=483282)
     self.Fail('conformance2/reading/read-pixels-into-pixel-pack-buffer.html',
         ['linux', 'amd'], bug=483282)
     self.Fail('conformance2/renderbuffers/framebuffer-texture-layer.html',
@@ skipping 212 matching lines @@
     # self.Fail(page_name,
     #     ['linux', ('nvidia', 0x1), 'debug', 'opengl'])
     # self.Fail(page_name,
     #     ['win', ('nvidia', 0x1), 'debug', 'opengl'])
 
     # Conflicts if between a generic os condition and a specific version
     # self.Fail(page_name,
     #     ['xp', ('nvidia', 0x1), 'debug', 'opengl'])
     # self.Fail(page_name,
     #     ['win', ('nvidia', 0x1), 'debug', 'opengl'])