aura: Do not include test code in production code.

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 <map>
 #include <string>
 #include <vector>
@@ skipping 32 matching lines @@
 
 class LayoutManager;
 class RootWindow;
 class WindowDelegate;
 class WindowObserver;
 
 // Defined in window_property.h (which we do not include)
 template<typename T>
 struct WindowProperty;
 
+namespace test {
+class WindowTestApi;
+}
+
 // Aura window implementation. Interesting events are sent to the
 // WindowDelegate.
 // TODO(beng): resolve ownership.
 class AURA_EXPORT Window : public ui::LayerDelegate,
                            public ui::LayerOwner,
                            public ui::EventTarget,
                            public ui::GestureConsumer {
  public:
   typedef std::vector<Window*> Windows;
 
-  class AURA_EXPORT TestApi {
-   public:
-    explicit TestApi(Window* window);
-
-    bool OwnsLayer() const;
-    bool ContainsMouse();
-
-   private:
-    TestApi();
-
-    Window* window_;
-
-    DISALLOW_COPY_AND_ASSIGN(TestApi);
-  };
-
   explicit Window(WindowDelegate* delegate);
   virtual ~Window();
 
   // Initializes the window. This creates the window's layer.
   void Init(ui::LayerType layer_type);
 
   // Creates a new layer for the window. Erases the layer-owned bounds, so the
   // caller may wish to set new bounds and other state on the window/layer.
   // Returns the old layer, which can be used for animations. Caller owns the
   // memory for the returned layer and must delete it when animation completes.
@@ skipping 264 matching lines @@
   // Overridden from ui::LayerDelegate:
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
 
 #ifndef NDEBUG
   // These methods are useful when debugging.
   std::string GetDebugInfo() const;
   void PrintWindowHierarchy(int depth) const;
 #endif
 
  private:
+  friend class test::WindowTestApi;
   friend class LayoutManager;
 
   // Used when stacking windows.
   enum StackDirection {
     STACK_ABOVE,
     STACK_BELOW
   };
 
   // Called by the public {Set,Get,Clear}Property functions.
   int64 SetPropertyInternal(const void* key,
@@ skipping 140 matching lines @@
   };
 
   std::map<const void*, Value> prop_map_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_