Update SetPaintToLayer to accept LayerType

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index 147785c6a86b255dc5e279a35c33d7bb0b7aa76b..1db5659551f08e4a65162922f8ce556b129e6d74 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -334,10 +334,14 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // Sets whether this view paints to a layer. A view paints to a layer if
   // either of the following are true:
   // . the view has a non-identity transform.
-  // . SetPaintToLayer(true) has been invoked.
+  // . SetPaintToLayer(ui::LayerType) has been invoked.
   // View creates the Layer only when it exists in a Widget with a non-NULL
   // Compositor.
-  void SetPaintToLayer(bool paint_to_layer);
+  void SetPaintToLayer(ui::LayerType layer_type = ui::LAYER_TEXTURED);
+
+  // Destroys the layer associated with this view, and reparents any descendants
+  // to the destroyed layer's parent.

[sky, 2017/01/23 21:21:05]

Document this has no effect if the view does not currently have a layer.

[yiyix, 2017/01/24 03:14:53]

Thanks, it is good to include in the description. 

+  void DestroyLayer();
 
   // Overridden from ui::LayerOwner:
   std::unique_ptr<ui::Layer> RecreateLayer() override;
@@ -1369,7 +1373,7 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // Accelerated painting ------------------------------------------------------
 
   // Creates the layer and related fields for this view.
-  void CreateLayer();
+  void CreateLayer(ui::LayerType layer_type);
 
   // Recursively calls UpdateParentLayers() on all descendants, stopping at any
   // Views that have layers. Calls UpdateParentLayer() for any Views that have
@@ -1392,10 +1396,6 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // this subtree.
   void OrphanLayers();
 
-  // Destroys the layer associated with this view, and reparents any descendants
-  // to the destroyed layer's parent.
-  void DestroyLayer();
-
   // Input ---------------------------------------------------------------------
 
   bool ProcessMousePressed(const ui::MouseEvent& event);