Undocks window first before side-snapping bounds

ash/wm/window_positioner.cc

 // 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.
 
 #include "ash/wm/window_positioner.h"
 
 #include "ash/ash_switches.h"
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
@@ skipping 306 matching lines @@
 
   gfx::Rect other_bounds = other_shown_window->bounds();
   gfx::Rect work_area = GetWorkAreaForWindowInParent(added_window);
   bool move_other_right =
       other_bounds.CenterPoint().x() > work_area.x() + work_area.width() / 2;
 
   // Push the other window to the size only if there are two windows left.
   if (single_window) {
     // When going from one to two windows both windows loose their
     // "positioned by user" flags.
-    added_window_state->set_bounds_changed_by_user(false);
+    added_window_state->SetBoundsChangedByUser(false);
     wm::WindowState* other_window_state =
         wm::GetWindowState(other_shown_window);
-    other_window_state->set_bounds_changed_by_user(false);
+    other_window_state->SetBoundsChangedByUser(false);
 
     if (WindowPositionCanBeManaged(other_shown_window)) {
       // Don't override pre auto managed bounds as the current bounds
       // may not be original.
       if (!other_window_state->pre_auto_manage_window_bounds())
         other_window_state->SetPreAutoManageWindowBounds(other_bounds);
 
       // Push away the other window after remembering its current position.
       if (MoveRectToOneSide(work_area, move_other_right, &other_bounds))
         SetBoundsAnimated(other_shown_window, other_bounds);
@@ skipping 190 matching lines @@
   // If the alignment was pushing the window out of the screen, we ignore the
   // alignment for that call.
   if (abs(pos.right() - work_area.right()) < grid)
     x = work_area.right() - w;
   if (abs(pos.bottom() - work_area.bottom()) < grid)
     y = work_area.bottom() - h;
   return gfx::Rect(x, y, w, h);
 }
 
 }  // namespace ash