Mac: Fix bugs in Sierra color fix

ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm

Index: ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm
diff --git a/ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm b/ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm
index 76ce11ef4f4cd6588a5b57826b91e2ab7b66096d..05d85c50ecec16f96a2f71aea4615589daf2f101 100644
--- a/ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm
+++ b/ui/accelerated_widget_mac/ca_layer_tree_coordinator.mm
@@ -6,6 +6,7 @@
 
 #include <AVFoundation/AVFoundation.h>
 
+#include "base/mac/mac_util.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/base/cocoa/animation_utils.h"
 
@@ -61,8 +62,8 @@
                    "specified, but not both.";
   }
   if (!pending_ca_renderer_layer_tree_)
-    pending_ca_renderer_layer_tree_.reset(
-        new CARendererLayerTree(allow_av_sample_buffer_display_layer_));
+    pending_ca_renderer_layer_tree_.reset(new CARendererLayerTree(
+        allow_av_sample_buffer_display_layer_, base::mac::IsAtLeastOS10_12()));
   return pending_ca_renderer_layer_tree_.get();
 }