Implicit coversion operators from integer geometry types to floating point.

ui/gfx/rect_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_RECT_F_H_
 #define UI_GFX_RECT_F_H_
 
 #include <string>
 
 #include "ui/gfx/point_f.h"
@@ skipping 22 matching lines @@
 
   RectF Scale(float x_scale, float y_scale) const WARN_UNUSED_RESULT {
     SizeF newSize = size().Scale(x_scale, y_scale);
     newSize.ClampToNonNegative();
     return RectF(origin().Scale(x_scale, y_scale), newSize);
   }
 
   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
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RECT_F_H_