Suppress WebGL 2 test compressed-tex-image.html on mac.

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 00b1dad1cbb5c2073f3425c6597f8ebe9ba8167c..db4e01557c57cfeaaca4b17ccd0ae3dea27e22dd 100644
--- a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
@@ -221,6 +221,9 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/renderbuffers/framebuffer-object-attachment.html',
         ['mac'], bug=564020)
 
+    self.Fail('conformance2/textures/misc/compressed-tex-image.html',
+        ['mac'], bug=565438)
+
     # Mac 10.9 only.
     self.Fail('conformance2/textures/misc/tex-mipmap-levels.html',
         ['mavericks'], bug=483282)