Undocks window first before side-snapping bounds

ash/wm/window_state.h

 // Copyright 2013 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 ASH_WM_WINDOW_STATE_H_
 #define ASH_WM_WINDOW_STATE_H_
 
 #include "ash/ash_export.h"
 #include "ash/wm/wm_types.h"
 #include "base/basictypes.h"
@@ skipping 51 matching lines @@
   // Predicates to check window state.
   bool IsMinimized() const;
   bool IsMaximized() const;
   bool IsFullscreen() const;
   bool IsMaximizedOrFullscreen() const;
   // True if the window's show state is SHOW_STATE_NORMAL or
   // SHOW_STATE_DEFAULT.
   bool IsNormalShowState() const;
   bool IsActive() const;
   bool IsDocked() const;
+  bool IsSnapped() const;
 
   // Checks if the window can change its state accordingly.
   bool CanMaximize() const;
   bool CanMinimize() const;
   bool CanResize() const;
   bool CanSnap() const;
   bool CanActivate() const;
 
   // Returns true if the window has restore bounds.
   bool HasRestoreBounds() const;
@@ skipping 168 matching lines @@
   virtual void OnWindowPropertyChanged(aura::Window* window,
                                        const void* key,
                                        intptr_t old) OVERRIDE;
   virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
 
  private:
   // Snaps the window to left or right of the desktop with given bounds.
   void SnapWindow(WindowShowType left_or_right,
                   const gfx::Rect& bounds);
 
+  // Allows window to be repositioned away from the screen edge.
+  void SetWindowShowTypeUnsnapped();
+
   // The owner of this window settings.
   aura::Window* window_;
   scoped_ptr<WindowStateDelegate> delegate_;
 
   bool tracked_by_workspace_;
   bool window_position_managed_;
   bool bounds_changed_by_user_;
   bool panel_attached_;
   bool continue_drag_after_reparent_;
   bool ignored_by_shelf_;
@@ skipping 27 matching lines @@
 ASH_EXPORT WindowState* GetWindowState(aura::Window* window);
 
 // const version of GetWindowState.
 ASH_EXPORT const WindowState*
 GetWindowState(const aura::Window* window);
 
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_STATE_H_