Tweaks to ToggleButton details.

ui/gfx/geometry/insets.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_GEOMETRY_INSETS_H_
 #define UI_GFX_GEOMETRY_INSETS_H_
 
 #include <string>
 
 #include "ui/gfx/geometry/insets_f.h"
 #include "ui/gfx/gfx_export.h"
 
 namespace gfx {
 
+class Vector2d;
+
 // Represents the widths of the four borders or margins of an unspecified
 // rectangle. An Insets stores the thickness of the top, left, bottom and right
 // edges, without storing the actual size and position of the rectangle itself.
 //
 // This can be used to represent a space within a rectangle, by "shrinking" the
 // rectangle by the inset amount on all four sides. Alternatively, it can
 // represent a border that has a different thickness on each side.
 class GFX_EXPORT Insets {
  public:
   constexpr Insets() : top_(0), left_(0), bottom_(0), right_(0) {}
@@ skipping 61 matching lines @@
     return Scale(scale, scale);
   }
 
   Insets Scale(float x_scale, float y_scale) const {
     return Insets(static_cast<int>(top() * y_scale),
                   static_cast<int>(left() * x_scale),
                   static_cast<int>(bottom() * y_scale),
                   static_cast<int>(right() * x_scale));
   }
 
+  Insets Offset(const gfx::Vector2d& vector) const;

[danakj, 2016/10/29 00:45:53]

Can you leave a comment explaining in more detail what it does too? And add a
unit test showing/verifying the behaviour of this method?

[Evan Stade, 2016/11/01 16:26:23]

Done.

+
   operator InsetsF() const {
     return InsetsF(static_cast<float>(top()), static_cast<float>(left()),
                    static_cast<float>(bottom()), static_cast<float>(right()));
   }
 
   // Returns a string representation of the insets.
   std::string ToString() const;
 
  private:
   int top_;
   int left_;
   int bottom_;
   int right_;
 };
 
 inline Insets operator+(Insets lhs, const Insets& rhs) {
   lhs += rhs;
   return lhs;
 }
 
 inline Insets operator-(Insets lhs, const Insets& rhs) {
   lhs -= rhs;
   return lhs;
 }
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GEOMETRY_INSETS_H_