Undocks window first before side-snapping bounds

ash/wm/workspace/workspace_window_resizer.cc

Index: ash/wm/workspace/workspace_window_resizer.cc
diff --git a/ash/wm/workspace/workspace_window_resizer.cc b/ash/wm/workspace/workspace_window_resizer.cc
index 3617da52255642d59fae53fbb811d881222546b1..dd2992e9017e5ed42a933c9c03b77d45debfd4cc 100644
--- a/ash/wm/workspace/workspace_window_resizer.cc
+++ b/ash/wm/workspace/workspace_window_resizer.cc
@@ -436,6 +436,7 @@ void WorkspaceWindowResizer::CompleteDrag(int event_flags) {
   if (!did_move_or_resize_ || details_.window_component != HTCAPTION)
     return;
 
+  bool is_snapped = false;
   // When the window is not in the normal show state, we do not snap the window.
   // This happens when the user minimizes or maximizes the window by keyboard
   // shortcut while dragging it. If the window is the result of dragging a tab
@@ -458,8 +459,11 @@ void WorkspaceWindowResizer::CompleteDrag(int event_flags) {
     if (window_state()->CanResize() &&
         !dock_layout_->is_dragged_window_docked()) {
       snap_sizer_->SnapWindowToTargetBounds();
+      is_snapped = true;
     }
   }
+  if (window_state()->IsSnapped() && !is_snapped)
+    window_state()->Restore();
 }
 
 void WorkspaceWindowResizer::RevertDrag() {