Flag mouse messages received when cursor is hidden.

ui/views/corewm/tooltip_controller.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/corewm/tooltip_controller.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 171 matching lines @@
 
 void TooltipController::OnMouseEvent(ui::MouseEvent* event) {
   // Ignore mouse events that coincide with the last touch event.
   if (event->location() == last_touch_loc_) {
     SetTooltipWindow(nullptr);
 
     if (tooltip_->IsVisible())
       UpdateIfRequired();
     return;
   }
+  // TODO: Wrap this up in the previous test.
+  if ((event->flags() & ui::EF_FROM_TOUCH) ||
+      (event->flags() & ui::EF_IS_SYNTHESIZED) ||
+      (event->flags() & ui::EF_CURSOR_HIDDEN)) {
+    SetTooltipWindow(nullptr);
+    if (tooltip_->IsVisible())
+      UpdateIfRequired();
+    return;
+  }
   switch (event->type()) {
     case ui::ET_MOUSE_CAPTURE_CHANGED:
     case ui::ET_MOUSE_EXITED:
     case ui::ET_MOUSE_MOVED:
     case ui::ET_MOUSE_DRAGGED: {
       curr_mouse_loc_ = event->location();
       aura::Window* target = NULL;
       // Avoid a call to display::Screen::GetWindowAtScreenPoint() since it can
       // be very expensive on X11 in cases when the tooltip is hidden anyway.
       if (tooltips_enabled_ &&
@@ skipping 184 matching lines @@
     return;
   if (tooltip_window_)
     tooltip_window_->RemoveObserver(this);
   tooltip_window_ = target;
   if (tooltip_window_)
     tooltip_window_->AddObserver(this);
 }
 
 }  // namespace corewm
 }  // namespace views