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

ash/wm/gestures/overview_gesture_handler.cc

 // Copyright 2013 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 "ash/wm/gestures/overview_gesture_handler.h"
 
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shell.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ash/wm/overview/window_selector_controller.h"
@@ skipping 64 matching lines @@
   shell->metrics()->RecordUserMetricsAction(UMA_TOUCHPAD_GESTURE_OVERVIEW);
   shell->window_selector_controller()->ToggleOverview();
   return true;
 }
 
 bool OverviewGestureHandler::ProcessGestureEvent(
     const ui::GestureEvent& event) {
   // Detect at the beginning of any gesture whether it begins on the top bezel.
   if (event.type() == ui::ET_GESTURE_BEGIN &&
       event.details().touch_points() == 1) {
-    gfx::Point point_in_screen(event.location());
+    gfx::Point point_in_screen(gfx::ToFlooredPoint(event.location()));
     aura::Window* target = static_cast<aura::Window*>(event.target());
     wm::ConvertPointToScreen(target, &point_in_screen);
     in_top_bezel_gesture_ = !Shell::GetScreen()->GetDisplayNearestPoint(
         point_in_screen).bounds().y() + kTopBezelExtraPixels >
             point_in_screen.y();
     return false;
   }
 
   if (!in_top_bezel_gesture_ ||
       event.type() != ui::ET_GESTURE_MULTIFINGER_SWIPE ||
       !event.details().swipe_down() ||
       event.details().touch_points() != 3) {
     return false;
   }
 
   Shell* shell = Shell::GetInstance();
   shell->metrics()->RecordUserMetricsAction(UMA_GESTURE_OVERVIEW);
   shell->window_selector_controller()->ToggleOverview();
   return true;
 }
 
 }  // namespace ash