Client side name cleanup

mojo/services/public/cpp/view_manager/view_tree_node_observer.h

-// Copyright 2014 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 MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_OBSERVER_H_
-#define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_OBSERVER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-
-#include "mojo/services/public/cpp/view_manager/view_tree_node.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace mojo {
-namespace view_manager {
-
-class View;
-class ViewTreeNode;
-
-class ViewTreeNodeObserver {
- public:
-  enum DispositionChangePhase {
-    DISPOSITION_CHANGING,
-    DISPOSITION_CHANGED
-  };
-
-  struct TreeChangeParams {
-    TreeChangeParams();
-    ViewTreeNode* target;
-    ViewTreeNode* old_parent;
-    ViewTreeNode* new_parent;
-    ViewTreeNode* receiver;
-    DispositionChangePhase phase;
-  };
-
-  virtual void OnTreeChange(const TreeChangeParams& params) {}
-
-  virtual void OnNodeReordered(ViewTreeNode* node,
-                               ViewTreeNode* relative_node,
-                               OrderDirection direction,
-                               DispositionChangePhase phase) {}
-
-  virtual void OnNodeDestroy(ViewTreeNode* node,
-                             DispositionChangePhase phase) {}
-
-  virtual void OnNodeActiveViewChange(ViewTreeNode* node,
-                                      View* old_view,
-                                      View* new_view,
-                                      DispositionChangePhase phase) {}
-
-  virtual void OnNodeBoundsChange(ViewTreeNode* node,
-                                  const gfx::Rect& old_bounds,
-                                  const gfx::Rect& new_bounds,
-                                  DispositionChangePhase phase) {}
-
- protected:
-  virtual ~ViewTreeNodeObserver() {}
-};
-
-}  // namespace view_manager
-}  // namespace mojo
-
-#endif  // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_TREE_NODE_OBSERVER_H_