Enable occlusion query feature on OpenGL3.3 and later

gpu/command_buffer/service/feature_info.h

Index: gpu/command_buffer/service/feature_info.h
diff --git a/gpu/command_buffer/service/feature_info.h b/gpu/command_buffer/service/feature_info.h
index ff2222fbc2bb7eb7df5e251dcca15fa0573635d4..71314ea38970adead08a40e1b93e86e162fd314e 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -59,6 +59,8 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
     bool occlusion_query_boolean;
     bool use_arb_occlusion_query2_for_occlusion_query_boolean;
     bool use_arb_occlusion_query_for_occlusion_query_boolean;
+    bool no_covert_any_samples_passed_conservative_target_for_es3;
+    bool covert_any_samples_passed_conservative_target_for_low_gl;
     bool native_vertex_array_object;
     bool ext_texture_format_astc;
     bool ext_texture_format_atc;