ui::LocatedEvent location() returns gfx::PointF

ui/aura/window_event_dispatcher.cc

 // Copyright 2014 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/aura/window_event_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 684 matching lines @@
                        host_mouse_location,
                        host_mouse_location,
                        ui::EF_IS_SYNTHESIZED,
                        0);
   return OnEventFromSource(&event);
 }
 
 void WindowEventDispatcher::PreDispatchLocatedEvent(Window* target,
                                                     ui::LocatedEvent* event) {
   int flags = event->flags();
-  if (IsNonClientLocation(target, event->location()))
+  if (IsNonClientLocation(target, gfx::ToFlooredPoint(event->location())))
     flags |= ui::EF_IS_NON_CLIENT;
   event->set_flags(flags);
 
   if (!dispatching_held_event_ &&
       (event->IsMouseEvent() || event->IsScrollEvent()) &&
       !(event->flags() & ui::EF_IS_SYNTHESIZED)) {
     if (event->type() != ui::ET_MOUSE_CAPTURE_CHANGED)
       SetLastMouseLocation(window(), event->root_location());
     synthesize_mouse_move_ = false;
   }
@@ skipping 130 matching lines @@
       break;
 
     default:
       NOTREACHED();
       break;
   }
   PreDispatchLocatedEvent(target, event);
 }
 
 }  // namespace aura