Fixing problem with not showing bubble

ui/views/widget/root_view.cc

 // Copyright (c) 2012 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 "ui/views/widget/root_view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 349 matching lines @@
     if (!(moved_event.flags() & ui::EF_IS_NON_CLIENT))
       widget_->SetCursor(mouse_move_handler_->GetCursor(moved_event));
   } else if (mouse_move_handler_ != NULL) {
     mouse_move_handler_->OnMouseExited(event);
     NotifyEnterExitOfDescendant(event, EVENT_EXIT, mouse_move_handler_, v);
     // On Aura the non-client area extends slightly outside the root view for
     // some windows.  Let the non-client cursor handling code set the cursor
     // as we do above.
     if (!(event.flags() & ui::EF_IS_NON_CLIENT))
       widget_->SetCursor(gfx::kNullCursor);
+    mouse_move_handler_ = NULL;
   }
 }
 
 void RootView::OnMouseExited(const ui::MouseEvent& event) {
   if (mouse_move_handler_ != NULL) {
     mouse_move_handler_->OnMouseExited(event);
     NotifyEnterExitOfDescendant(event, EVENT_EXIT, mouse_move_handler_, NULL);
     mouse_move_handler_ = NULL;
   }
 }
@@ skipping 222 matching lines @@
 }
 
 void RootView::SetMouseLocationAndFlags(const ui::MouseEvent& event) {
   last_mouse_event_flags_ = event.flags();
   last_mouse_event_x_ = event.x();
   last_mouse_event_y_ = event.y();
 }
 
 }  // namespace internal
 }  // namespace views