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

ui/views/controls/scrollbar/base_scroll_bar.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/controls/scrollbar/base_scroll_bar.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 117 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // BaseScrollBar, View implementation:
 
 bool BaseScrollBar::OnMousePressed(const ui::MouseEvent& event) {
   if (event.IsOnlyLeftMouseButton())
     ProcessPressEvent(event);
   return true;
 }
 
 void BaseScrollBar::OnMouseReleased(const ui::MouseEvent& event) {
-  SetState(HitTestPoint(event.location()) ?
-           CustomButton::STATE_HOVERED : CustomButton::STATE_NORMAL);
+  SetState(HitTestPoint(gfx::ToFlooredPoint(event.location()))
+               ? CustomButton::STATE_HOVERED
+               : CustomButton::STATE_NORMAL);
 }
 
 void BaseScrollBar::OnMouseCaptureLost() {
   SetState(CustomButton::STATE_NORMAL);
 }
 
 void BaseScrollBar::OnMouseEntered(const ui::MouseEvent& event) {
   SetThumbTrackState(CustomButton::STATE_HOVERED);
 }
 
@@ skipping 360 matching lines @@
     thumb_position = thumb_position - (thumb_->GetSize() / 2);
   return (thumb_position * contents_size_) / GetTrackSize();
 }
 
 void BaseScrollBar::SetThumbTrackState(CustomButton::ButtonState state) {
   thumb_track_state_ = state;
   SchedulePaint();
 }
 
 }  // namespace views