Remove blink side texture status caching.

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 3b991168631e9947eaa858f3b89b8518e703a3bb..fe7ec63e1383f3726e3cb0a878676b0ff097433d 100644
--- a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
@@ -92,6 +92,10 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('conformance2/textures/misc/tex-input-validation.html',
         bug=483282)
 
+    # Command buffer side handling of TexSubImage3D is incorrect.
+    self.Fail('conformance2/textures/misc/tex-storage-and-subimage-3d.html',
+        bug=570453)
+
     # Windows only.
     self.Fail('conformance2/textures/canvas/tex-image-and-sub-image-2d' +
         '-with-canvas-r8-red-unsigned_byte.html',