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ui/compositor/layer_owner.h

Index: ui/compositor/layer_owner.h
diff --git a/ui/compositor/layer_owner.h b/ui/compositor/layer_owner.h
deleted file mode 100644
index 27002e5db02e712e2bdb21e7e4535bb01e2cad70..0000000000000000000000000000000000000000
--- a/ui/compositor/layer_owner.h
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2012 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.
-
-#ifndef UI_COMPOSITOR_LAYER_OWNER_H_
-#define UI_COMPOSITOR_LAYER_OWNER_H_
-
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/compositor/compositor_export.h"
-#include "ui/compositor/layer.h"
-
-namespace ui {
-class LayerOwnerDelegate;
-
-class COMPOSITOR_EXPORT LayerOwner {
- public:
-  LayerOwner();
-  virtual ~LayerOwner();
-
-  void SetLayer(Layer* layer);
-
-  // Releases the owning reference to its layer, and returns it.
-  // This is used when you need to animate the presentation of the owner just
-  // prior to destroying it. The Owner can be destroyed soon after calling this
-  // function, and the caller is then responsible for disposing of the layer
-  // once any animation completes. Note that layer() will remain valid until the
-  // end of ~LayerOwner().
-  scoped_ptr<Layer> AcquireLayer();
-
-  // Asks the owner to recreate the layer, returning the old Layer. NULL is
-  // returned if there is no existing layer, or recreate is not supported.
-  //
-  // This does not recurse. Existing children of the layer are moved to the new
-  // layer.
-  scoped_ptr<Layer> RecreateLayer();
-
-  ui::Layer* layer() { return layer_; }
-  const ui::Layer* layer() const { return layer_; }
-
-  void set_layer_owner_delegate(LayerOwnerDelegate* delegate) {
-    layer_owner_delegate_ = delegate;
-  }
-
- protected:
-  void DestroyLayer();
-
-  bool OwnsLayer() const;
-
- private:
-  // The LayerOwner owns its layer unless ownership is relinquished via a call
-  // to AcquireLayer(). After that moment |layer_| will still be valid but
-  // |layer_owner_| will be NULL. The reason for releasing ownership is that
-  // the client may wish to animate the layer beyond the lifetime of the owner,
-  // e.g. fading it out when it is destroyed.
-  scoped_ptr<Layer> layer_owner_;
-  Layer* layer_;
-
-  LayerOwnerDelegate* layer_owner_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(LayerOwner);
-};
-
-}  // namespace ui
-
-#endif  // UI_COMPOSITOR_LAYER_OWNER_H_