Revert of Fix blits from multisampled renderbuffers to alpha:false WebGL back buffer.

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 029b74207ae7f34fb4cb4a3e90e43fb7dc6813ed..179d0ed41d215eeca07353c1454e6e4bc9d628f4 100644
--- a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
@@ -223,6 +223,9 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/glsl3/vector-dynamic-indexing-swizzled-lvalue.html',
         ['mac'], bug=709351)
     self.Fail('conformance2/rendering/' +
+        'blitframebuffer-resolve-to-back-buffer.html',
+        ['mac'], bug=699566)
+    self.Fail('conformance2/rendering/' +
         'framebuffer-completeness-unaffected.html',
         ['mac'], bug=630800)
     self.Fail('deqp/functional/gles3/fbocompleteness.html',