Update the nine patch layer to use UI resources

cc/resources/scoped_ui_resource.cc

Index: cc/resources/scoped_ui_resource.cc
diff --git a/cc/resources/scoped_ui_resource.cc b/cc/resources/scoped_ui_resource.cc
index 16225528cf79170b179f3ce61aa77453f0332cd0..e68109788f4f9846d158f30bbec9b70e0e018f58 100644
--- a/cc/resources/scoped_ui_resource.cc
+++ b/cc/resources/scoped_ui_resource.cc
@@ -12,12 +12,12 @@ namespace cc {
 
 scoped_ptr<ScopedUIResource> ScopedUIResource::Create(
     LayerTreeHost* host,
-    scoped_refptr<UIResourceBitmap> bitmap) {
+    const UIResourceBitmap& bitmap) {
   return make_scoped_ptr(new ScopedUIResource(host, bitmap));
 }
 
 ScopedUIResource::ScopedUIResource(LayerTreeHost* host,
-                                   scoped_refptr<UIResourceBitmap> bitmap)
+                                   const UIResourceBitmap& bitmap)
     : bitmap_(bitmap), host_(host) {
   DCHECK(host_);
   id_ = host_->CreateUIResource(this);
@@ -32,9 +32,8 @@ ScopedUIResource::~ScopedUIResource() {
   }
 }
 
-scoped_refptr<UIResourceBitmap> ScopedUIResource::GetBitmap(
-    UIResourceId uid,
-    bool resource_lost) {
+UIResourceBitmap ScopedUIResource::GetBitmap(UIResourceId uid,
+                                             bool resource_lost) {
   return bitmap_;
 }