Undocks window first before side-snapping bounds

ash/wm/window_state.h

Index: ash/wm/window_state.h
diff --git a/ash/wm/window_state.h b/ash/wm/window_state.h
index 2bbdd035b0d127d001746d55ddfc9ba0b96d426b..31be19f5cff9af062d6acca04c58eba364385167 100644
--- a/ash/wm/window_state.h
+++ b/ash/wm/window_state.h
@@ -69,6 +69,7 @@ class ASH_EXPORT WindowState : public aura::WindowObserver {
   bool IsNormalShowState() const;
   bool IsActive() const;
   bool IsDocked() const;
+  bool IsSnapped() const;
 
   // Checks if the window can change its state accordingly.
   bool CanMaximize() const;
@@ -188,9 +189,11 @@ class ASH_EXPORT WindowState : public aura::WindowObserver {
 
   // Whether or not the window's position or size was changed by a user.
   bool bounds_changed_by_user() const { return bounds_changed_by_user_; }
-  void set_bounds_changed_by_user(bool bounds_changed_by_user) {
-    bounds_changed_by_user_ = bounds_changed_by_user;
-  }
+
+  // Sets |bounds_changed_by_user_| to the value passed in a parameter.
+  // If the new value is true allows the window to be repositioned away from
+  // snapped state at the screen edge.
+  void SetBoundsChangedByUser(bool bounds_changed_by_user);
 
   // True if this window is an attached panel.
   bool panel_attached() const {
@@ -257,6 +260,9 @@ class ASH_EXPORT WindowState : public aura::WindowObserver {
   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_;