Implicit coversion operators from integer geometry types to floating point.

This change allows you to call a function that expects a floating point
object with an integer object and have things just work. The addition
operator for Points is outside the Point classes so it can add/subtract integer
and float points together implicitly.

Tested to verify compilation with:
ui_unittests:RectTest.ToRectF
ui_unittests:SizeTest.ToSizeF
ui_unittests:PointTest.ToPointF

BUG=147395
R=sky@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11028127

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@161415 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 0 deletions

diff --git a/ui/gfx/point_f.h b/ui/gfx/point_f.h
index a0b367f..d6cded9 100644
--- a/ui/gfx/point_f.h
+++ b/ui/gfx/point_f.h
@@ -31,6 +31,14 @@ class UI_EXPORT PointF : public PointBase<PointF, float> {
   std::string ToString() const;
 };
 
+inline bool operator==(const PointF& lhs, const PointF& rhs) {
+  return lhs.x() == rhs.x() && lhs.y() == rhs.y();
+}
+
+inline bool operator!=(const PointF& lhs, const PointF& rhs) {
+  return !(lhs == rhs);
+}
+
 inline PointF operator+(PointF lhs, PointF rhs) {
   return lhs.Add(rhs);
 }