Update the nine patch layer to use UI resources

cc/resources/scoped_ui_resource.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/scoped_ui_resource.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "cc/trees/layer_tree_host.h"
 
 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);
 }
 
 // User must make sure that host is still valid before this object goes out of
 // scope.
 ScopedUIResource::~ScopedUIResource() {
   if (id_) {
     DCHECK(host_);
     host_->DeleteUIResource(id_);
   }
 }
 
-gfx::Size ScopedUIResource::GetSize() const {
-  return bitmap_->GetSize();
-}
-
-scoped_refptr<UIResourceBitmap> ScopedUIResource::GetBitmap(
-    UIResourceId uid,
-    bool resource_lost) {
+UIResourceBitmap ScopedUIResource::GetBitmap(UIResourceId uid,
+                                             bool resource_lost) {
   return bitmap_;
 }
 
-ScopedUIResource::ScopedUIResource() {}
-
 }  // namespace cc