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

ui/views/view.cc

Index: ui/views/view.cc
diff --git a/ui/views/view.cc b/ui/views/view.cc
index 7e0440ea729e188ef97ac865d10b6368ce08dfa5..94a0afbbb142325441e9d3606ef9cfbf37413189 100644
--- a/ui/views/view.cc
+++ b/ui/views/view.cc
@@ -1982,7 +1982,7 @@ bool View::ConvertPointForAncestor(const View* ancestor,
   gfx::Transform trans;
   // TODO(sad): Have some way of caching the transformation results.
   bool result = GetTransformRelativeTo(ancestor, &trans);
-  gfx::Point3F p(*point);
+  auto p = gfx::Point3F(gfx::PointF(*point));
   trans.TransformPoint(&p);
   *point = gfx::ToFlooredPoint(p.AsPointF());
   return result;
@@ -1992,7 +1992,7 @@ bool View::ConvertPointFromAncestor(const View* ancestor,
                                     gfx::Point* point) const {
   gfx::Transform trans;
   bool result = GetTransformRelativeTo(ancestor, &trans);
-  gfx::Point3F p(*point);
+  auto p = gfx::Point3F(gfx::PointF(*point));
   trans.TransformPointReverse(&p);
   *point = gfx::ToFlooredPoint(p.AsPointF());
   return result;