Move a bunch of functions from Window onto Widget.

views/window/native_window_gtk.h

Index: views/window/native_window_gtk.h
===================================================================
--- views/window/native_window_gtk.h	(revision 87016)
+++ views/window/native_window_gtk.h	(working copy)
@@ -39,8 +39,6 @@
                                     GdkEventConfigure* event);
   virtual gboolean OnMotionNotify(GtkWidget* widget, GdkEventMotion* event);
   virtual void OnSizeAllocate(GtkWidget* widget, GtkAllocation* allocation);
-  virtual gboolean OnWindowStateEvent(GtkWidget* widget,
-                                      GdkEventWindowState* event);
   virtual gboolean OnLeaveNotify(GtkWidget* widget, GdkEventCrossing* event);
   virtual void IsActiveChanged();
 
@@ -65,26 +63,19 @@
   virtual void SetAccessibleState(ui::AccessibilityTypes::State state) OVERRIDE;
   virtual void SetWindowBounds(const gfx::Rect& bounds,
                                gfx::NativeWindow other_window) OVERRIDE;
-  virtual void HideWindow() OVERRIDE;
-  virtual void Activate() OVERRIDE;
-  virtual void Deactivate() OVERRIDE;
-  virtual void Maximize() OVERRIDE;
-  virtual void Minimize() OVERRIDE;
-  virtual void Restore() OVERRIDE;
-  virtual bool IsActive() const OVERRIDE;
-  virtual bool IsVisible() const OVERRIDE;
-  virtual bool IsMaximized() const OVERRIDE;
-  virtual bool IsMinimized() const OVERRIDE;
   virtual void SetFullscreen(bool fullscreen) OVERRIDE;
   virtual bool IsFullscreen() const OVERRIDE;
-  virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE;
   virtual void SetUseDragFrame(bool use_drag_frame) OVERRIDE;
   virtual NonClientFrameView* CreateFrameViewForWindow() OVERRIDE;
   virtual void UpdateFrameAfterFrameChange() OVERRIDE;
-  virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
   virtual bool ShouldUseNativeFrame() const OVERRIDE;
   virtual void FrameTypeChanged() OVERRIDE;
 
+  // Overridden from NativeWidgetGtk:
+  virtual void Restore() OVERRIDE;
+  virtual gboolean OnWindowStateEvent(GtkWidget* widget,
+                                      GdkEventWindowState* event) OVERRIDE;
+
   // For  the constructor.
   friend class Window;
 
@@ -94,9 +85,6 @@
   static gboolean CallConfigureEvent(GtkWidget* widget,
                                      GdkEventConfigure* event,
                                      NativeWindowGtk* window_gtk);
-  static gboolean CallWindowStateEvent(GtkWidget* widget,
-                                       GdkEventWindowState* event,
-                                       NativeWindowGtk* window_gtk);
 
   // Asks the delegate if any to save the window's location and size.
   void SaveWindowPosition();
@@ -113,9 +101,6 @@
   // desired implementation before calling |Init|.
   NonClientView* non_client_view_;
 
-  // State of the window, such as fullscreen, hidden...
-  GdkWindowState window_state_;
-
   // Set to true if the window is in the process of closing.
   bool window_closed_;