gfx: Make conversions from gfx::Point to PointF explicit.

chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc

Index: chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc
diff --git a/chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc b/chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc
index 7186ab3ec3d004cb29fbd236bfb4ab2b3a00f01e..41742d9a4fbbdf6e3f4addc17a0dc3c0257575a3 100644
--- a/chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc
+++ b/chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.cc
@@ -85,12 +85,14 @@ void LinkDisambiguationPopup::ZoomBubbleView::OnMouseEvent(
     ui::MouseEvent* event) {
   // Transform mouse event back to coordinate system of the web content window
   // before providing to the callback.
+  ui::MouseEvent xform_event(event->type(), gfx::Point(), gfx::Point(),
+                             ui::EventTimeForNow(), event->flags(),
+                             event->changed_button_flags());
   gfx::PointF xform_location(
       (event->location().x() / scale_) + target_rect_.x(),
       (event->location().y() / scale_) + target_rect_.y());
-  ui::MouseEvent xform_event(event->type(), xform_location, xform_location,
-                             ui::EventTimeForNow(), event->flags(),
-                             event->changed_button_flags());
+  xform_event.set_location_f(xform_location);
+  xform_event.set_root_location_f(xform_location);
   mouse_cb_.Run(&xform_event);
   event->SetHandled();