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

ash/frame/caption_buttons/frame_caption_button.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/frame/caption_buttons/frame_caption_button.h"
 
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/animation/throb_animation.h"
 #include "ui/gfx/canvas.h"
@@ skipping 124 matching lines @@
     PaintCentered(canvas, icon_image, icon_alpha);
   }
 }
 
 void FrameCaptionButton::OnGestureEvent(ui::GestureEvent* event) {
   // CustomButton does not become pressed when the user drags off and then back
   // onto the button. Make FrameCaptionButton pressed in this case because this
   // behavior is more consistent with AlternateFrameSizeButton.
   if (event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
       event->type() == ui::ET_GESTURE_SCROLL_UPDATE) {
-    if (HitTestPoint(event->location())) {
+    if (HitTestPoint(gfx::ToFlooredPoint(event->location()))) {
       SetState(STATE_PRESSED);
       RequestFocus();
       event->StopPropagation();
     } else {
       SetState(STATE_NORMAL);
     }
   } else if (event->type() == ui::ET_GESTURE_SCROLL_END) {
-    if (HitTestPoint(event->location())) {
+    if (HitTestPoint(gfx::ToFlooredPoint(event->location()))) {
       SetState(STATE_HOVERED);
       NotifyClick(*event);
       event->StopPropagation();
     }
   }
   CustomButton::OnGestureEvent(event);
 }
 
 const gfx::ImageSkia& FrameCaptionButton::GetIconImageToPaint() const {
   return paint_as_active_ ? icon_image_ : inactive_icon_image_;
 }
 
 void FrameCaptionButton::PaintCentered(gfx::Canvas* canvas,
                                        const gfx::ImageSkia& to_center,
                                        int alpha) {
   SkPaint paint;
   paint.setAlpha(alpha);
   canvas->DrawImageInt(to_center,
                        (width() - to_center.width()) / 2,
                        (height() - to_center.height()) / 2,
                        paint);
 }
 
 }  // namespace ash