Remove the i from visib[i]le.

cc/trees/property_tree_builder.cc

Index: cc/trees/property_tree_builder.cc
diff --git a/cc/trees/property_tree_builder.cc b/cc/trees/property_tree_builder.cc
index 696e5c48b0589f3ccfbb117cdda910b660e1b029..7853b0112b26755ef0fb16dbc1063d07a975f78c 100644
--- a/cc/trees/property_tree_builder.cc
+++ b/cc/trees/property_tree_builder.cc
@@ -1100,7 +1100,7 @@ void SetBackfaceVisibilityTransform(LayerType* layer,
         (Is3dSorted(layer) && is_at_boundary_of_3d_rendering_context);
     layer->SetUseLocalTransformForBackfaceVisibility(use_local_transform);
 
-    // A double-sided layer's backface can been shown when its visibile.
+    // A double-sided layer's backface can been shown when its visible.
     if (DoubleSided(layer))
       layer->SetShouldCheckBackfaceVisibility(false);
     // The backface of a layer that uses local transform for backface visibility