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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "cc/resources/scoped_ui_resource.h"
      6 
      7 #include "base/basictypes.h"
      8 #include "base/bind.h"
      9 #include "cc/trees/layer_tree_host.h"
     10 
     11 namespace cc {
     12 
     13 scoped_ptr<ScopedUIResource> ScopedUIResource::Create(
     14     LayerTreeHost* host,
     15     const UIResourceBitmap& bitmap) {
     16   return make_scoped_ptr(new ScopedUIResource(host, bitmap));
     17 }
     18 
     19 ScopedUIResource::ScopedUIResource(LayerTreeHost* host,
     20                                    const UIResourceBitmap& bitmap)
     21     : bitmap_(bitmap), host_(host) {
     22   DCHECK(host_);
     23   id_ = host_->CreateUIResource(this);
     24 }
     25 
     26 // User must make sure that host is still valid before this object goes out of
     27 // scope.
     28 ScopedUIResource::~ScopedUIResource() {
     29   if (id_) {
     30     DCHECK(host_);
     31     host_->DeleteUIResource(id_);
     32   }
     33 }
     34 
     35 UIResourceBitmap ScopedUIResource::GetBitmap(UIResourceId uid,
     36                                              bool resource_lost) {
     37   return bitmap_;
     38 }
     39 
     40 }  // namespace cc
     41