Remove ash dependency.

ui/aura/window.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_H_
 #define UI_AURA_WINDOW_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 282 matching lines @@
   // TODO(benrg): Find a better solution.
   void SetNativeWindowProperty(const char* key, void* value);
   void* GetNativeWindowProperty(const char* key) const;
 
   // Type of a function to delete a property that this window owns.
   //typedef void (*PropertyDeallocator)(int64_t value);
 
   // Overridden from ui::LayerDelegate:
   void OnDeviceScaleFactorChanged(float device_scale_factor) override;
 
-#if !defined(NDEBUG)
   // These methods are useful when debugging.
   std::string GetDebugInfo() const;
   void PrintWindowHierarchy(int depth) const;
-#endif
 
   // Returns true if there was state needing to be cleaned up.
   bool CleanupGestureState();
 
   // Create a CompositorFrameSink for the aura::Window.
   std::unique_ptr<cc::CompositorFrameSink> CreateCompositorFrameSink();
 
   // Get the current cc::SurfaceId.
   cc::SurfaceId GetSurfaceId() const;
 
@@ skipping 169 matching lines @@
   bool ignore_events_;
 
   base::ObserverList<WindowObserver, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_