On ES or Core profile, we should be able to disable vertex attrib 0.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
index 88a46bde6ded2301204b98dd6754fedcbbe57add..d744776429671e97c1189e52e6c964b9d4f9df1b 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -253,9 +253,11 @@ void GLES2DecoderTestBase::InitDecoderWithCommandLine(
 
   AddExpectationsForBindVertexArrayOES();
 
-  EXPECT_CALL(*gl_, EnableVertexAttribArray(0))
-      .Times(1)
-      .RetiresOnSaturation();
+  if (!group_->feature_info()->gl_version_info().BehavesLikeGLES()) {
+    EXPECT_CALL(*gl_, EnableVertexAttribArray(0))
+        .Times(1)
+        .RetiresOnSaturation();
+  }
   static GLuint attrib_0_id[] = {
     kServiceAttrib0BufferId,
   };