Implicit coversion operators from integer geometry types to floating point.

ui/gfx/rect_f.h

Index: ui/gfx/rect_f.h
diff --git a/ui/gfx/rect_f.h b/ui/gfx/rect_f.h
index 4395b523a00fa26f864801e4652e108705fe475f..fbdeb4e157a0c6551550fdf4b7af6c6e06fe110c 100644
--- a/ui/gfx/rect_f.h
+++ b/ui/gfx/rect_f.h
@@ -40,6 +40,14 @@ class UI_EXPORT RectF : public RectBase<RectF, PointF, SizeF, InsetsF, float> {
   std::string ToString() const;
 };
 
+inline bool operator==(const RectF& lhs, const RectF& rhs) {
+  return lhs.origin() == rhs.origin() && lhs.size() == rhs.size();
+}
+
+inline bool operator!=(const RectF& lhs, const RectF& rhs) {
+  return !(lhs == rhs);
+}
+
 #if !defined(COMPILER_MSVC)
 extern template class RectBase<RectF, PointF, SizeF, InsetsF, float>;
 #endif