Implicit coversion operators from integer geometry types to floating point.

ui/gfx/point_f.h

 // Copyright (c) 2012 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.
 
 #ifndef UI_GFX_POINT_F_H_
 #define UI_GFX_POINT_F_H_
 
 #include <string>
 
 #include "ui/base/ui_export.h"
@@ skipping 13 matching lines @@
   }
 
   PointF Scale(float x_scale, float y_scale) const WARN_UNUSED_RESULT {
     return PointF(x() * x_scale, y() * y_scale);
   }
 
   // Returns a string representation of point.
   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);
 }
 
 inline PointF operator-(PointF lhs, PointF rhs) {
   return lhs.Subtract(rhs);
 }
 
 #if !defined(COMPILER_MSVC)
 extern template class PointBase<PointF, float>;
 #endif
 
 }  // namespace gfx
 
 #endif  // UI_GFX_POINT_F_H_