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

ui/views/widget/widget.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/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 1199 matching lines @@
         event->SetHandled();
       return;
 
     case ui::ET_MOUSE_MOVED:
     case ui::ET_MOUSE_DRAGGED:
       if (native_widget_->HasCapture() && is_mouse_button_pressed_) {
         last_mouse_event_was_move_ = false;
         if (root_view)
           root_view->OnMouseDragged(*event);
       } else if (!last_mouse_event_was_move_ ||
-                 last_mouse_event_position_ != event->location()) {
-        last_mouse_event_position_ = event->location();
+                 last_mouse_event_position_ !=
+                     gfx::ToFlooredPoint(event->location())) {
+        last_mouse_event_position_ = gfx::ToFlooredPoint(event->location());
         last_mouse_event_was_move_ = true;
         if (root_view)
           root_view->OnMouseMoved(*event);
       }
       return;
 
     case ui::ET_MOUSE_EXITED:
       last_mouse_event_was_move_ = false;
       if (root_view)
         root_view->OnMouseExited(*event);
@@ skipping 253 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views