Revert of Making WTH::InitCompositor() protected instead of public.

ui/aura/window_tree_host.h

 // 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_AURA_WINDOW_TREE_HOST_H_
 #define UI_AURA_WINDOW_TREE_HOST_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 42 matching lines @@
 
   // Creates a new WindowTreeHost. The caller owns the returned value.
   static WindowTreeHost* Create(const gfx::Rect& bounds_in_pixels);
 
   // Returns the WindowTreeHost for the specified accelerated widget, or NULL
   // if there is none associated.
   static WindowTreeHost* GetForAcceleratedWidget(gfx::AcceleratedWidget widget);
 
   void InitHost();
 
+  void InitCompositor();
+
   void AddObserver(WindowTreeHostObserver* observer);
   void RemoveObserver(WindowTreeHostObserver* observer);
 
   Window* window() { return window_; }
   const Window* window() const { return window_; }
 
   ui::EventProcessor* event_processor();
 
   WindowEventDispatcher* dispatcher() {
     return const_cast<WindowEventDispatcher*>(
@@ skipping 111 matching lines @@
  protected:
   friend class TestScreen;  // TODO(beng): see if we can remove/consolidate.
 
   WindowTreeHost();
   explicit WindowTreeHost(std::unique_ptr<WindowPort> window_port);
 
   void DestroyCompositor();
   void DestroyDispatcher();
 
   void CreateCompositor();
-  void InitCompositor();
   void OnAcceleratedWidgetAvailable();
 
   // Returns the location of the RootWindow on native screen.
   virtual gfx::Point GetLocationOnScreenInPixels() const = 0;
 
   void OnHostMovedInPixels(const gfx::Point& new_location_in_pixels);
   void OnHostResizedInPixels(const gfx::Size& new_size_in_pixels);
   void OnHostWorkspaceChanged();
   void OnHostCloseRequested();
   void OnHostActivated();
@@ skipping 55 matching lines @@
   bool owned_input_method_;
 
   gfx::Insets output_surface_padding_in_pixels_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHost);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_TREE_HOST_H_