Implement GL_EXT_occlusion_query_boolean on OSX

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 71c9b71dd5075a9972c36a5cda53c6dcdd3b3745..53b48f6000531e99104af0aa91ad1b3e41095726 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -34,7 +34,8 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
           arb_texture_rectangle(false),
           angle_instanced_arrays(false),
           occlusion_query_boolean(false),
-          use_arb_occlusion_query2_for_occlusion_query_boolean(false) {
+          use_arb_occlusion_query2_for_occlusion_query_boolean(false),
+          use_arb_occlusion_query_for_occlusion_query_boolean(false) {
     }
 
     bool chromium_framebuffer_multisample;
@@ -51,6 +52,7 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
     bool angle_instanced_arrays;
     bool occlusion_query_boolean;
     bool use_arb_occlusion_query2_for_occlusion_query_boolean;
+    bool use_arb_occlusion_query_for_occlusion_query_boolean;
   };
 
   FeatureInfo();