Revert 236048 "Rename RootWindowHost* to WindowTreeHost*"

trunk/src/ui/aura/root_window_observer.h

Index: trunk/src/ui/aura/root_window_observer.h
===================================================================
--- trunk/src/ui/aura/root_window_observer.h	(revision 236091)
+++ trunk/src/ui/aura/root_window_observer.h	(working copy)
@@ -19,15 +19,15 @@
 class AURA_EXPORT RootWindowObserver {
  public:
   // Invoked after the RootWindow's host has been resized.
-  virtual void OnWindowTreeHostResized(const RootWindow* root) {}
+  virtual void OnRootWindowHostResized(const RootWindow* root) {}
 
   // Invoked after the RootWindow's host has been moved on screen.
-  virtual void OnWindowTreeHostMoved(const RootWindow* root,
+  virtual void OnRootWindowHostMoved(const RootWindow* root,
                                      const gfx::Point& new_origin) {}
 
   // Invoked when the native windowing system sends us a request to close our
   // window.
-  virtual void OnWindowTreeHostCloseRequested(const RootWindow* root) {}
+  virtual void OnRootWindowHostCloseRequested(const RootWindow* root) {}
 
   // Invoked when the keyboard mapping has changed.
   virtual void OnKeyboardMappingChanged(const RootWindow* root) {}